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v. i. To become widely opened, spread apart, dilated, distended, or enlarged; as, flowers expand in the spring; metals expand by heat; the heart expands with joy. Dryden. [ 1913 Webster ]

adj. able to expand or to be expanded.
Syn. -- expandible, expansible, expansile. [ WordNet 1.5 +PJC ]

adj. increased in extent or size or bulk or scope. Opposite of contracted. [ Narrower terms: blown-up, enlarged; dilated; distended, swollen; inflated ] [ WordNet 1.5 ]

2. (Printnig) wider than usual for a particular height; -- of printers' type. Contrasted with condensed.
Syn. -- extended. [ WordNet 1.5 ]

n. Anything which causes expansion esp. (Mech.) a tool for stretching open or expanding a tube, etc. [ 1913 Webster ]

adj. same as expandable.
Syn. -- expandable, expansible. [ WordNet 1.5 +PJC ]

a. That expands, or may be expanded; extending; spreading; enlarging. [ 1913 Webster ]

Expanding bit,
Expanding drill (Mech.), a bit or drill made adjustable for holes of various sizes; one which can be expanded in diameter while boring. --
Expanding pulley (Mach.), a pulley so made, as in sections, that its diameter can be increased or diminished. [ 1913 Webster ]

n. [ From L. expansus, p. p. of expandere. See Expand. ] That which is expanded or spread out; a wide extent of space or body; especially, the arch of the sky. “The green expanse.” Savage. [ 1913 Webster ]

Lights . . . high in the expanse of heaven. Milton. [ 1913 Webster ]

The smooth expanse of crystal lakes. Pope. [ 1913 Webster ]

v. t. To expand. [ Obs. ] [ 1913 Webster ]

That lies expansed unto the eyes of all. Sir. T. Browne. [ 1913 Webster ]

n. The capacity of being expanded; as, the expansibility of air. [ 1913 Webster ]

a. [ Cf. F. expansible. ] Capable of being expanded or spread out widely. [ 1913 Webster ]

Bodies are not expansible in proportion to their weight. Grew.

-- Ex*pan"si*ble*ness ,n. -Ex*pan"si*bly , adv. [ 1913 Webster ]

a. Expansible. [ 1913 Webster ]

Ether and alcohol are more expansile than water. Brande & C. [ 1913 Webster ]

n. [ L. expansio: cf. F. expansion. ] 1. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement. [ 1913 Webster ]

2. That which is expanded; expanse; extend surface; as, the expansion of a sheet or of a lake; the expansion was formed of metal. [ 1913 Webster ]

The starred expansion of the skies. Beattie. [ 1913 Webster ]

3. Space through which anything is expanded; also, pure space. [ 1913 Webster ]

Lost in expansion, void and infinite. Blackmore. [ 1913 Webster ]

4. (Economics & Commmerce) an increase in the production of goods and services over time, and in the volume of business transactions, generally associated with an increase in employment and an increase in the money supply. Opposite of contraction.
Syn. -- economic expansion. [ 1913 Webster +PJC ]

5. (Math.) The developed result of an indicated operation; as, the expansion of (a + b)2 is a2 + 2ab + b2. [ 1913 Webster ]

6. (Steam Engine) The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston. [ 1913 Webster ]

7. (Nav. Arch.) The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction. Ham. Nav. Encyc. [ 1913 Webster ]

☞ Expansion is also used adjectively, as in expansion joint, expansion gear, etc. [ 1913 Webster ]

8. an enlarged or extended version of something, such as a writing or discourse; as, the journal article is an expansion of the lecture she gave. [ PJC ]

9. an expansion joint. See below. [ Colloq. or jargon ] [ PJC ]

Expansion curve, a curve the coördinates of which show the relation between the pressure and volume of expanding gas or vapor; esp. (Steam engine), that part of an indicator diagram which shows the declining pressure of the steam as it expands in the cylinder. --
Expansion gear (Steam Engine). a cut-off gear. See Illust. of Link motion. --
Automatic expansion gear or
Automatic cut-off, one that is regulated by the governor, and varies the supply of steam to the engine with the demand for power. --
Fixed expansion gear, or
Fixed cut-off, one that always operates at the same fixed point of the stroke. --
Expansion joint, or
Expansion coupling (Mech. & Engin.), a yielding joint or coupling for so uniting parts of a machine or structure that expansion, as by heat, is prevented from causing injurious strains; as: (a) A slide or set of rollers, at the end of bridge truss, to support it but allow end play. (b) A telescopic joint in a steam pipe, to permit one part of the pipe to slide within the other. (c) A clamp for holding a locomotive frame to the boiler while allowing lengthwise motion. (d) a strip of compressible material placed at intervals between blocks of poured concrete, as in roads or sidewalks. --
Expansion valve (Steam Engine), a cut-off valve, to shut off steam from the cylinder before the end of each stroke. [ 1913 Webster ]

a. [ Cf. F. expansif. ] 1. Having a capacity or tendency to expand or dilate; diffusive; of much expanse; wide-extending; as, the expansive force of heat; the expansive quality of air. [ wns=1 ] [ 1913 Webster ]

A more expansive and generous compassion. Eustace. [ 1913 Webster ]

His forehead was broad and expansive. Prescott.

2. causing expansion; as, the expansive force of heat. [ 1913 Webster +PJC ]

3. of much expanse; wide-extending; as, an expansive view of the mountains. [ PJC ]

4. friendly, open, and unrestrained in conversation or discourse; -- of people; as, wine made the guest expansive. [ wns=4 ]
Syn. -- effusive, talkative. [ WordNet 1.5 ]

5. characterized by exaggerated feelings of euphoria and delusions of grandeur. [ wns=3 ] [ WordNet 1.5 ]

-- Ex*pan"sive*ly, adv. -Ex*pan"sive*ness, n. [ 1913 Webster ]

n. 1. a quality characterized by magnificence of scale; as, the expansiveness of their extravagant lifestyle was soon curtailed. [ WordNet 1.5 ]

2. a friendly open trait of a talkative person.
Syn. -- effusiveness. [ WordNet 1.5 ]

n. 1. the fractional change in length or area or volume per unit change in temperature at a given constant pressure.
Syn. -- coefficient of expansion. [ WordNet 1.5 ]

n. Expanse. [ Obs. ] “Night's rich expansure.” [ 1913 Webster ]

v. i. [ imp. & p. p. Expatiated p. pr. & vb. n. Expariating ] [ L. expatiatus, exspatiatus, p. p. of expatiari, exspatiari, to expatiate; ex out + spatiari to walk about spread out, fr. spatium space. See Space. ] 1. To range at large, or without restraint. [ 1913 Webster ]

Bids his free soul expatiate in the skies. Pope. [ 1913 Webster ]

2. To enlarge in discourse or writing; to be copious in argument or discussion; to descant. [ 1913 Webster ]

He expatiated on the inconveniences of trade. Addison. [ 1913 Webster ]

v. t. To expand; to spread; to extend; to diffuse; to broaden. [ 1913 Webster ]

Afford art an ample field in which to expatiate itself. Dryden. [ 1913 Webster ]

n. Act of expatiating. [ 1913 Webster ]

a. Expansive; diffusive. [ R. ] [ 1913 Webster ]

v. t. [ imp. & p. p. Expatriated p. pr. & vb. n. Expatriating ] [ LL. expatriatus, p. p. of expatriare; L. ex out + patria fatherland, native land, fr. pater father. See Patriot. ] 1. To banish; to drive or force (a person) from his own country; to make an exile of. [ 1913 Webster ]

The expatriated landed interest of France. Burke. [ 1913 Webster ]

2. Reflexively, as To expatriate one's self: To withdraw from one's native country; to renounce the rights and liabilities of citizenship where one is born, and become a citizen of another country. [ 1913 Webster ]

n. [ Cf. F. expatriation. ] The act of banishing, or the state of banishment; especially, the forsaking of one's own country with a renunciation of allegiance. [ 1913 Webster ]

Expatriation was a heavy ransom to pay for the rights of their minds and souls. Palfrey. [ 1913 Webster ]

v. t. [ imp. & p. p. Expected; p. pr. & vb. n. Expecting. ] [ L. expectatum, to look out for, await, expect; ex + out spectare to look at. See Spectacle. ] 1. To wait for; to await. [ Obs. ] [ 1913 Webster ]

Let's in, and there expect their coming. Shak. [ 1913 Webster ]

2. To look for (mentally); to look forward to, as to something that is believed to be about to happen or come; to have a previous apprehension of, whether of good or evil; to look for with some confidence; to anticipate; -- often followed by an infinitive, sometimes by a clause (with, or without, that); as, I expect to receive wages; I expect that the troops will be defeated. “Good: I will expect you.” Shak. “Expecting thy reply.” Shak. [ 1913 Webster ]

The Somersetshire or yellow regiment . . . was expected to arrive on the following day. Macaulay.

Syn. -- To anticipate; look for; await; hope. -- To Expect, Think, Believe, Await. Expect is a mental act and has aways a reference to the future, to some coming event; as a person expects to die, or he expects to survive. Think and believe have reference to the past and present, as well as to the future; as I think the mail has arrived; I believe he came home yesterday, that he is he is at home now. There is a not uncommon use of expect, which is a confusion of the two; as, I expect the mail has arrived; I expect he is at home. This misuse should be avoided. Await is a physical or moral act. We await that which, when it comes, will affect us personally. We expect what may, or may not, interest us personally. See Anticipate. [ 1913 Webster ]

v. t. To wait; to stay. [ Obs. ] Sandys. [ 1913 Webster ]

n. Expectation. [ Obs. ] Shak. [ 1913 Webster ]

a. [ L. expectabilis. ] That may be expected or looked for. Sir T. Browne.

{ } n. 1. The act of expecting; expectation. Milton. [ 1913 Webster ]

2. That which is expected, or looked or waited for with interest; the object of expectation or hope. [ 1913 Webster ]

The expectancy and rose of the fair state. Shak. [ 1913 Webster ]

Estate in expectancy (Law), one the possession of which a person is entitled to have at some future time, either as a remainder or reversion, or on the death of some one. Burrill. [ 1913 Webster ]

n. One who waits in expectation; one held in dependence by hope of receiving some good. [ 1913 Webster ]

An expectant of future glory. South. [ 1913 Webster ]

Those who had employments, or were expectants. Swift. [ 1913 Webster ]

a. [ L.expectans, exspectans, p. pr. of expectare, exspectare: cf. F. expectant. ] Waiting in expectation; looking for; (Med.) waiting for the efforts of nature, with little active treatment. [ 1913 Webster ]

Expectant estate (Law), an estate in expectancy. See under Expectancy. [ 1913 Webster ]

pos>n. [ L. expectio. exspectio: cf. F. expectation. ] 1. The act or state of expecting or looking forward to an event as about to happen. “In expectation of a guest.” Tennyson. [ 1913 Webster ]

My soul, wait thou only upon God, for my expectation is from him. Ps. lxii. 5. [ 1913 Webster ]

2. That which is expected or looked for. [ 1913 Webster ]

Why our great expectation should be called
The seed of woman. Milton. [ 1913 Webster ]

3. The prospect of the future; grounds upon which something excellent is expected to happen; prospect of anything good to come, esp. of property or rank. [ 1913 Webster ]

His magnificent expectations made him, in the opinion of the world, the best match in Europe. Prescott. [ 1913 Webster ]

By all men's eyes a youth of expectation. Otway. [ 1913 Webster ]

4. The value of any chance (as the prospect of prize or property) which depends upon some contingent event. Expectations are computed for or against the occurrence of the event. [ 1913 Webster ]

5. (Med.) The leaving of the disease principally to the efforts of nature to effect a cure. [ 1913 Webster ]

Expectation of life, the mean or average duration of the life individuals after any specified age.

Syn. -- Anticipation; confidence; trust. [ 1913 Webster ]

a. [ Cf. F. expectatif. ] Constituting an object of expectation; contingent. [ 1913 Webster ]

Expectative grace, a mandate given by the pope or a prince appointing a successor to any benefice before it becomes vacant. Foxe. [ 1913 Webster ]

n. [ F. expectative, fr. expectatif expectant. ] Something in expectation; esp., an expectative grace. Milman. [ 1913 Webster ]

adv. In conformity with expectation. [ R. ] Walpole. [ 1913 Webster ]

n. One who expects. [ 1913 Webster ]

adv. In a state of expectation. [ 1913 Webster ]

a. Expectative. [ R. ] Shipley. [ 1913 Webster ]

a. [ L. expectorans, p. pr. of expectorare to drive from the breast: cf. F. expectorant. ] (Med.) Tending to facilitate expectoration or to promote discharges of mucus, etc., from the lungs or throat. -- n. An expectorant medicine. [ 1913 Webster ]

v. t. [ imp. & p. p. Expectorated p. pr. & vb. n. Expectorating ] [ L. expecrorare to drive from the breast; ex out + pectus, pectiris, breast. See Pectoral. ] To eject from the trachea or lungs; to discharge, as phlegm or other matter, by coughing, hawking, and spitting; to spit forth. [ 1913 Webster ]

v. i. To discharge matter from the lungs or throat by hawking and spitting; to spit. [ 1913 Webster ]

n. [ Cf. F. expectoration. ] 1. The act of ejecting phlegm or mucus from the throat or lungs, by coughing, hawking, and spitting. [ 1913 Webster ]

2. That which is expectorated, as phlegm or mucus. [ 1913 Webster ]

a. & n. Same as Expectorant. Harvey. [ 1913 Webster ]

pos>v. t. To expedite; to hasten. [ Obs. ] [ 1913 Webster ]

v. t. [ Cf. F. expédier. See Expedite. ] To hasten; to expedite. [ Obs. ] “To expediate their business.” Sir E. Sandys.

{ }, n. 1. The quality of being expedient or advantageous; fitness or suitableness to effect a purpose intended; adaptedness to self-interest; desirableness; advantage; advisability; -- sometimes contradistinguished from moral rectitude or principle. [ 1913 Webster ]

Divine wisdom discovers no expediency in vice. Cogan. [ 1913 Webster ]

To determine concerning the expedience of action. Sharp. [ 1913 Webster ]

Much declamation may be heard in the present day against expediency, as if it were not the proper object of a deliberative assembly, and as if it were only pursued by the unprincipled. Whately. [ 1913 Webster ]

2. Expedition; haste; dispatch. [ Obs. ] [ 1913 Webster ]

Making hither with all due expedience. Shak. [ 1913 Webster ]

3. An expedition; enterprise; adventure. [ Obs. ] [ 1913 Webster ]

Forwarding this dear expedience. Shak. [ 1913 Webster ]

pos>a. [ L. expediens, -entis, p. pr. of expedire to be expedient, release, extricate: cf. F. expédient. See Expedite. ] 1. Hastening or forward; hence, tending to further or promote a proposed object; fit or proper under the circumstances; conducive to self-interest; desirable; advisable; advantageous; -- sometimes contradistinguished from right or principled. [ 1913 Webster ]

It is expedient for you that I go away. John xvi. 7. [ 1913 Webster ]

Nothing but the right can ever be expedient, since that can never be true expediency which would sacrifice a greater good to a less. Whately. [ 1913 Webster ]

2. Quick; expeditious. [ Obs. ] [ 1913 Webster ]

His marches are expedient to this town. Shak. [ 1913 Webster ]

n. 1. That which serves to promote or advance; suitable means to accomplish an end. [ 1913 Webster ]

What sure expedient than shall Juno find,
To calm her fears and ease her boding mind? Philips. [ 1913 Webster ]

2. Means devised in an exigency; shift.

Syn. -- Shift; contrivance; resource; substitute. [ 1913 Webster ]

Governed by expediency; seeking advantage; as an expediential policy. “Calculating, expediential understanding.” Hare. -- Ex*pe`di*en"tial*ly , adv. Fitzed. Hall [1913 Webster]

pos>adv. 1. In an expedient manner; fitly; suitably; conveniently. [ 1913 Webster ]

2. With expedition; quickly. [ Obs. ] [ 1913 Webster ]