*dyn*

a. [ Cf. F. adynamique. See Adynamy. ] 1. (Med.) Pertaining to, or characterized by adynamia; weak. [ 1913 Webster + AS ]

2. (Physics) Characterized by the absence of power or force. [ 1913 Webster ]

Adynamic fevers, malignant or putrid fevers attended with great muscular debility. [ 1913 Webster ]

n. Adynamia. [ R. ] Morin. [ 1913 Webster ]

n. 1. the resistance caused by a gas to the motion of a solid body moving through it. Studied in aerodynamics. [ PJC ]

n. [ Aëro- + dynamics: cf. F. aérodynamique. ] The science which treats of the air and other gaseous bodies under the action of force, and of their mechanical effects. [ 1913 Webster ]

n. [ Aëro- + Gr. &unr_; . ] (Aëronautics) a heavier-than-air aircraft; same as aeroplane. Contrasted with aerostat. [ PJC ]

a. [ Aëro- + hydrodynamic. ] Acting by the force of air and water; as, an aërohydrodynamic wheel. [ 1913 Webster ]

a. 1. Pertaining to the force of air in motion. [ 1913 Webster ]

2. having a shape designed to minimize wind resistance (aerodynamic drag) when moving through the air or other gas; -- used especially of vehicles; as, the aerodynamic styling of an automobile. [ PJC ]

a. [ L. anodynus, Gr. &unr_; free from pain, stilling pain; 'an priv. + &unr_; pain: cf. F. anodin. ] Serving to assuage pain; soothing. [ 1913 Webster ]

The anodyne draught of oblivion. Burke. [ 1913 Webster ]

☞ “The word [ in a medical sense ] in chiefly applied to the different preparations of opium, belladonna, hyoscyamus, and lettuce.” Am. Cyc. [ 1913 Webster ]

n. [ L. anodynon. See Anodyne, a. ] Any medicine which allays pain, as an opiate or narcotic; anything that soothes disturbed feelings. [ 1913 Webster ]

a. Anodyne. [ 1913 Webster ]

‖n. [ NL., fr. Gr. 'a`rqron joint + 'ody`nh pain. ] (Med.) An affection characterized by pain in or about a joint, not dependent upon structural disease. [ 1913 Webster ]

a. Pertaining to arthrodynia, or pain in the joints; rheumatic. [ 1913 Webster ]

a. [ Auto- + dynamic. ] Supplying its own power, as a hydraulic ram. [ Webster 1913 Suppl. ]

{ , a. } 1. (Biol.) Of or pertaining to biodynamics, or the doctrine of vital forces or energy. [ Webster 1913 Suppl. ]

2. of or pertaining to a method of farming that uses only organic fertilizers (rather than chemical fertilizers) and organic materials for improving the soil characteristics. [ PJC ]

n. [ Gr. bi`os life + E. dynamics. ] 1. (Biol.) The doctrine of vital forces or energy. [ archaic ] [ 1913 Webster ]

2. The branch of biology which treats of the active vital phenomena of organisms; -- opposed to biostatics. [ Webster 1913 Suppl. ]

n. Embroidery. [ Obs. ] [ 1913 Webster ]

Of goldsmithrye, of browdyng, and of steel. Chaucer. [ 1913 Webster ]

n. [ From chlorine, in imitation of anodyne. ] (Med.) A patent anodyne medicine, containing opium, chloroform, Indian hemp, etc. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. di- = di`s- twice + &unr_; power. ] (Bot.) A Linnæan class of plants having four stamens disposed in pairs of unequal length. [ 1913 Webster ]

‖a. Didynamous. [ 1913 Webster ]

a. (Bot.) Of or pertaining to the Didynamia; containing four stamens disposed in pairs of unequal length. [ 1913 Webster ]

n. [ Gr. &unr_; power + E. actinometer. ] An instrument for measuring the intensity of the photogenic (light-producing) rays, and computing the power of object glasses. [ 1913 Webster ]

n. [ Cf. F. dyname. See Dynamic. ] A unit of measure for dynamical effect or work; a foot pound. See Foot pound. Whewell. [ 1913 Webster ]

n. [ Gr. &unr_; power + -meter: cf. F. dynamètre. Cf. Dynamometer. ] 1. A dynamometer. [ 1913 Webster ]

2. (Opt.) An instrument for determining the magnifying power of telescopes, consisting usually of a doubleimage micrometer applied to the eye end of a telescope for measuring accurately the diameter of the image of the object glass there formed; which measurement, compared with the actual diameter of the glass, gives the magnifying power. [ 1913 Webster ]

a. Pertaining to a dynameter.

{ } a. [ Gr. &unr_; powerful, fr. &unr_; power, fr. &unr_; to be able; cf. L. durus hard, E. dure: cf. F. dynamique. ] 1. Of or pertaining to dynamics; belonging to energy or power; characterized by energy or production of force. [ 1913 Webster ]

Science, as well as history, has its past to show, -- a past indeed, much larger; but its immensity is dynamic, not divine. J. Martineau. [ 1913 Webster ]

The vowel is produced by phonetic, not by dynamic, causes. J. Peile. [ 1913 Webster ]

2. Relating to physical forces, effects, or laws; as, dynamical geology. [ 1913 Webster ]

As natural science has become more dynamic, so has history. Prof. Shedd. [ 1913 Webster ]

Dynamical electricity. See under Electricity. [ 1913 Webster ]

WordNet lists a number of narrower terms for dynamic and adj. [ Narrower terms: can-do; driving; energizing, energising, kinetic; forceful, slashing, vigorous; projectile; propellant, propellent, propelling, propulsive; renascent, resurgent; self-propelled, self-propelling; high-octane, high-powered, high-power, high-voltage ] [ WordNet 1.5 ]

adv. In accordance with the principles of dynamics or moving forces. J. Peile. [ 1913 Webster ]

n. [ Random Access Memory. ] (Computers) a type of random access memory using circuits that require periodic refresh cycles in order to retain the stored information. Contrasted to static ram, which maintains the memory state as long as the power is still applied. [ acron. ] dynamic RAM is cheaper to manufacture, but because of the need for a refresh cycle, is generally slower to access than static RAM. It is usually implemented in integrated rircuit chips containing thousands to millions of bits of information storage capacity, and is commonly used as the main type of memory circuit in personal computers.
Syn. -- DRAM, D-RAM. [ PJC ]

n. 1. That branch of mechanics which treats of the motion of bodies (Kinematics) and the action of forces in producing or changing their motion (kinetics). Dynamics is held by some recent writers to include statics and not kinematics. [ 1913 Webster ]

2. The moving moral, as well as physical, forces of any kind, or the laws which relate to them. [ 1913 Webster ]

3. (Mus.) That department of musical science which relates to, or treats of, the power of tones. [ 1913 Webster ]

n. [ Cf. F. dynamisme. See Dynamics. ] The doctrine of Leibnitz, that all substance involves force. [ 1913 Webster ]

n. One who accounts for material phenomena by a theory of dynamics. [ 1913 Webster ]

Those who would resolve matter into centers of force may be said to constitute the school of dynamists. Ward (Dyn. Sociol. ). [ 1913 Webster ]

n. A political dynamiter. [ A form found in some newspapers. ] [ 1913 Webster ]

n. [ Gr. &unr_; power. See Dynamic. ] (Chem.) An explosive substance consisting of nitroglycerin absorbed by some inert, porous solid, as infusorial earth, sawdust, etc. It is safer than nitroglycerin, being less liable to explosion from moderate shocks, or from spontaneous decomposition. [ 1913 Webster ]

n. One who uses dynamite; esp., one who uses it for the destruction of life and property. [ 1913 Webster ]

n. Destroying by dynamite, for political ends. [ 1913 Webster ]

Dynamiting is not the American way. The Century. [ 1913 Webster ]

n. The work of dynamiters. [ 1913 Webster ]

[ Gr. &unr_; power. See Dynamic. ] (Homeop.) The act of setting free the dynamic powers of a medicine, as by shaking the bottle containing it. [ 1913 Webster ]

n. A dynamo-electric machine. [ 1913 Webster ]

a. [ Gr. &unr_; power + E. electric. See Dynamic. ] Pertaining to the development of electricity, especially electrical currents, by power; producing electricity or electrical currents by mechanical power. [ 1913 Webster ]

n. [ Gr. &unr_; power + -graph. See Dynamic. ] (Physiol.) A dynamometer to which is attached a device for automatically registering muscular power. [ 1913 Webster ]

n. [ Cf. F. dynamomètre. See Dynameter. ] An apparatus for measuring force or power; especially, muscular effort of men or animals, or the power developed by a motor, or that required to operate machinery. [ 1913 Webster ]

☞ It usually embodies a spring to be compressed or weight to be sustained by the force applied, combined with an index, or automatic recorder, to show the work performed.

{ } a. Relating to a dynamometer, or to the measurement of force doing work; as, dynamometrical instruments. [ 1913 Webster ]

n. The art or process of measuring forces doing work. [ 1913 Webster ]

n. [ L. dynastes, Gr. &unr_;, fr. &unr_; to be able or strong: cf. F. dynaste. See Dynamic. ] 1. A ruler; a governor; a prince. [ 1913 Webster ]

2. A dynasty; a government. [ Obs. ] [ 1913 Webster ]

‖n. [ NL. See Dynast. ] A tyrant. [ Obs. ] Milton. [ 1913 Webster ]

a. [ Gr. &unr_; of a dynast, fr. &unr_;: cf. F. dunastique. ] Of or relating to a dynasty or line of kings. Motley. [ 1913 Webster ]

a. Dynastic. [ 1913 Webster ]

n. [ Gr. &unr_;, fem. of &unr_;. See Dynast. The name alludes to the immense size of some species. ] (Zool.) One of a group of gigantic, horned beetles, including Dynastus Neptunus, and the Hercules beetle (Dynastus Hercules) of tropical America, which grow to be six inches in length. [ 1913 Webster ]