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adj. 1. 1 pertaining to or using audiovisual aids in teaching or exposition the school's audiovisual department [ WordNet 1.5 ]

a. [ Pref. bi- + sulcate. ] [ 1913 Webster ]

1. Having two grooves or furrows. [ 1913 Webster ]

2. (Zool.) Cloven; said of a foot or hoof. [ 1913 Webster ]

a. [ L. bisulcus; bis twice + sulcus furrow. ] Bisulcate. Sir T. Browne. [ 1913 Webster ]

n. [ Pref. bi- + sulphate. ] (Chem.) A sulphate in which but half the hydrogen of the acid is replaced by a positive element or radical, thus making the proportion of the acid to the positive or basic portion twice what it is in the normal sulphates; an acid sulphate. [ 1913 Webster ]

n. [ Pref. bi- + sulphide. ] (Chem.) A sulphide having two atoms of sulphur in the molecule; a disulphide, as in iron pyrites, FeS2; -- less frequently called bisulphuret. [ 1913 Webster ]

n. (Chem.) A salt of sulphurous acid in which the base replaces but half the hydrogen of the acid; an acid sulphite. [ 1913 Webster ]

n. [ Pref. bi- + sulphuret. ] (Chem.) See Bisulphide. [ 1913 Webster ]

n. [ F. ] 1. (Fort.) Any part of a rampart or parapet which deviates from the general direction. [ 1913 Webster ]

2. (Her.) A mark of cadency or difference. [ 1913 Webster ]

n. a genus of small late-flowering trees or subshrubs having yellow to red flowers and leathery or woody pods; -- often used especially for those formerly included in genus Cytisus.
Syn. -- genus Chamaecytisus. [ WordNet 1.5 ]

a. [ L. creber close + sulcus furrow. ] (Zool.) Marked with closely set transverse furrows. [ 1913 Webster ]

n. (Mil. Antiq.) A suit of light armor covering less than the whole body, as having no protection for the legs below the thighs, no vizor to the helmet, and the like. [ 1913 Webster ]

n. [ F. dépriser to undervalue; pref. dé- (L. dis-) + priser to prize, fr. prix price, fr. L. pretium. See Dispraise. ] Low estimation; disesteem; contempt. [ Obs. ] [ 1913 Webster ]

n. [ Pref. di- + sulphate. ] (Chem.) (a) A salt of disulphuric or pyrosulphuric acid; a pyrosulphate. (b) An acid salt of sulphuric acid, having only one equivalent of base to two of the acid. [ 1913 Webster ]

n. [ Pref. di- + sulphide. ] (Chem.) A binary compound of sulphur containing two atoms of sulphur in each molecule; -- formerly called disulphuret. Cf. Bisulphide. [ 1913 Webster ]

n. [ Pref. di- + sulphuret. ] (Chem.) See Disulphide. [ 1913 Webster ]

a. [ Pref. di- + sulphuric. ] (Chem.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. [ 1913 Webster ]

Disulphuric acid, a thick oily liquid, H2S2O7, called also Nordhausen acid (from Nordhausen in the Harts, where it was originally manufactured), fuming sulphuric acid, and especially pyrosulphuric acid. See under Pyrosulphuric. [ 1913 Webster ]

a. Not uniform. [ Obs. ] [ 1913 Webster ]

n. [ Pref. dis- + union: cf. F. désunion. ] 1. The termination of union; separation; disjunction; as, the disunion of the body and the soul. [ 1913 Webster ]

2. A breach of concord and its effect; alienation. [ 1913 Webster ]

Such a disunion between the two houses as might much clou&unr_; the happiness of this kingdom. Clarendon. [ 1913 Webster ]

3. The termination or disruption of the union of the States forming the United States. [ 1913 Webster ]

I have not accustomed myself to hang over the precipice of disunion. D. Webster. [ 1913 Webster ]

n. An advocate of disunion, specifically, of disunion of the United States. [ 1913 Webster ]

v. t. [ imp. & p. p. Disunited; p. pr. & vb. n. Disuniting. ] 1. To destroy the union of; to divide; to part; to sever; to disjoin; to sunder; to separate; as, to disunite particles of matter. [ 1913 Webster ]

2. To alienate in spirit; to break the concord of. [ 1913 Webster ]

Go on both in hand, O nations, never be disunited, be the praise . . . of all posterity! Milton. [ 1913 Webster ]

v. i. To part; to fall asunder; to become separated. [ 1913 Webster ]

The joints of the body politic do separate and disunite. South. [ 1913 Webster ]

n. One who, or that which, disjoins or causes disunion. [ 1913 Webster ]

n. A state of separation or disunion; want of unity. Dr. H. More. [ 1913 Webster ]

n. Gradual cessation of use or custom; neglect of use; disuse. [ R. ] Hooker. [ 1913 Webster ]

v. t. [ imp. & p. p. Disused p. pr. & vb. n. Disusing. ] 1. To cease to use; to discontinue the practice of. [ 1913 Webster ]

2. To disaccustom; -- with to or from; as, disused to toil. “Disuse me from . . . pain.” Donne. [ 1913 Webster ]

n. Cessation of use, practice, or exercise; inusitation; desuetude; as, the limbs lose their strength by disuse. [ 1913 Webster ]

The disuse of the tongue in the only . . . remedy. Addison. [ 1913 Webster ]

Church discipline then fell into disuse. Southey. [ 1913 Webster ]

v. t. To deprive of utility; to render useless. [ R. ] Mrs. Browning. [ 1913 Webster ]

‖n. [ F. ] The dressing of the hair by crisping or curling. Smollett. [ 1913 Webster ]

n. [ L. incisura: cf. F. incisure. ] A cut; an incision; a gash. Derham. [ 1913 Webster ]

n. [ Iso- + urea. ] (Chem.) An artificial nitrogenous base, isomeric with urea, and forming a white crystalline substance; -- called also isuretine. [ 1913 Webster ]

a. [ See Leisure. ] [ 1913 Webster ]

1. Leisurely. [ Obs. ] Hooker. [ 1913 Webster ]

2. Vacant of employment; not occupied; idle; leisure; as leisurable hours. [ Obs. ] Sir T. Browne. [ 1913 Webster ]

adv. At leisure. [ Obs. ] [ 1913 Webster ]

n. [ OE. leisere, leiser, OF. leisir, F. loisir, orig., permission, fr. L. licere to be permitted. See License. ] 1. Freedom from occupation or business; vacant time; time free from employment. [ 1913 Webster ]

The desire of leisure is much more natural than of business and care. Sir W. Temple. [ 1913 Webster ]

2. Time at one's command, free from engagement; convenient opportunity; hence, convenience; ease. [ 1913 Webster ]

He sighed, and had no leisure more to say. Dryden. [ 1913 Webster ]

At leisure. (a) Free from occupation; not busy. (b) In a leisurely manner; at a convenient time. [ 1913 Webster ]

a. Unemployed; as, leisure hours. [ 1913 Webster ]

a. Having leisure. “The leisured classes.” Gladstone. [ 1913 Webster ]

a. Characterized by leisure; taking abundant time; not hurried; as, a leisurely manner; a leisurely walk. [ 1913 Webster ]

adv. In a leisurely manner. Addison. [ 1913 Webster ]

v. t. [ imp. & p. p. Misunderstood p. pr. & vb. n. Misunderstanding. ] To misconceive; to mistake; to miscomprehend; to take in a wrong sense. [ 1913 Webster ]

n. One who misunderstands. Sir T. More. [ 1913 Webster ]

n. 1. Mistake of the meaning; error; misconception. Bacon. [ 1913 Webster ]

2. Disagreement; difference of opinion; dissension; quarrel. “Misunderstandings among friends.” Swift. [ 1913 Webster ]

‖a. [ It. ] (Mus.) Measured; -- a direction to perform a passage in strict or measured time. [ 1913 Webster ]

n. [ Cf. F. mésusage. ] Bad treatment; abuse. Spenser. [ 1913 Webster ]

v. t. [ F. mésuser. See Mis-, prefix from French, and Use. ] 1. To treat or use improperly; to use to a bad purpose; to misapply; as, to misuse one's talents. South. [ 1913 Webster ]

The sweet poison of misused wine. Milton. [ 1913 Webster ]

2. To abuse; to treat ill. [ 1913 Webster ]

O, she misused me past the endurance of a block. Shak. [ 1913 Webster ]

Syn. -- To maltreat; abuse; misemploy; misapply. [ 1913 Webster ]

n. 1. Wrong use; misapplication; erroneous or improper use. [ 1913 Webster ]

Words little suspected for any such misuse. Locke. [ 1913 Webster ]

2. Violence, or its effects. [ Obs. ] Shak. [ 1913 Webster ]

n. Misuse. [ Obs. ] [ 1913 Webster ]

n. 1. One who misuses. “Wretched misusers of language.” Coleridge. [ 1913 Webster ]

2. (Law) Unlawful use of a right; use in excess of, or varying from, one's right. Bouvier. [ 1913 Webster ]

a. [ Multi- + sulcate. ] Having many furrows. [ 1913 Webster ]

‖n. [ L., fr. niti, p. p. nisus, to strive. ] 1. A striving; an effort; a conatus. [ 1913 Webster ]

A nisus or energizing towards a presented object. Hickok. [ 1913 Webster ]

2. (Physiol.) (a) The periodic procreative desire manifested in the spring by birds, etc. (b) The contraction of the diaphragm and abdominal muscles to evacuate feces or urine. [ Webster 1913 Suppl. ]