n. 1. a class mail comprising letters, postcards, and other mail sealed against inspection, having a higher priority than second, third, or fourth-class mail; -- it is the highest class of mail not handled in a special manner, as is registered or priority mail.
Syn. -- first-class, first-class mail, 1st-class mail [ WordNet 1.5 ]

v. t. [ L. acclamare; ad + clamare to cry out. See Claim, Clamor. ] [ R. ] 1. To applaud. “A glad acclaiming train.” Thomson. [ 1913 Webster ]

2. To declare by acclamations. [ 1913 Webster ]

While the shouting crowd
Acclaims thee king of traitors. Smollett. [ 1913 Webster ]

3. To shout; as, to acclaim my joy. [ 1913 Webster ]

v. i. To shout applause. [ 1913 Webster ]

n. Acclamation. [ Poetic ] Milton. [ 1913 Webster ]

n. One who acclaims. [ 1913 Webster ]

n. [ L. acclamatio: cf. F. acclamation. ] 1. A shout of approbation, favor, or assent; eager expression of approval; loud applause. [ 1913 Webster ]

On such a day, a holiday having been voted by acclamation, an ordinary walk would not satisfy the children. Southey. [ 1913 Webster ]

2. (Antiq.) A representation, in sculpture or on medals, of people expressing joy. [ 1913 Webster ]

3. In parliamentary usage, the act or method of voting orally and by groups rather than by ballot, esp. in elections; specif. (R. C. Ch.), the election of a pope or other ecclesiastic by unanimous consent of the electors, without a ballot. [ Webster 1913 Suppl. ]

Acclamation medals are those on which laudatory acclamations are recorded. Elmes. [ 1913 Webster ]

a. Pertaining to, or expressing approval by, acclamation. [ 1913 Webster ]

n. An unexpected subsequent event; something disagreeable happening after an affair is supposed to be at an end. Spenser. [ 1913 Webster ]

a. [ Gr. &unr_; to bend back and break; to reflect (light); &unr_; + &unr_; to break. ] 1. (Opt.) Produced by the refraction of light, as seen through water; as, anaclastic curves. [ 1913 Webster ]

2. Springing back, as the bottom of an anaclastic glass. [ 1913 Webster ]

Anaclastic glass, a glass or phial, shaped like an inverted funnel, and with a very thin convex bottom. By sucking out a little air, the bottom springs into a concave form with a smart crack; and by breathing or blowing gently into the orifice, the bottom, with a like noise, springs into its former convex form. [ 1913 Webster ]

n. (Opt.) That part of optics which treats of the refraction of light; -- commonly called dioptrics. Encyc. Brit. [ 1913 Webster ]

n. [ L. angustus narrow + clavus a nail, a stripe. ] (Rom. Antiq.) A narrow stripe of purple worn by the equites on each side of the tunic as a sign of rank. [ Webster 1913 Suppl. ]

n. [ Gr. 'an priv. + orthoclase. ] (Min.) A feldspar closely related to orthoclase, but triclinic. It is chiefly a silicate of sodium, potassium, and aluminium. Sp. gr., 2.57 -- 2.60. [ Webster 1913 Suppl. ]

‖n. [ Gr. &unr_;; 'anti`/ + 'ana`klasis a bending back and breaking. See Anaclastic. ] (Rhet.) (a) A figure which consists in repeating the same word in a different sense; as, Learn some craft when young, that when old you may live without craft. (b) A repetition of words beginning a sentence, after a long parenthesis; as, Shall that heart (which not only feels them, but which has all motions of life placed in them), shall that heart, etc. [ 1913 Webster ]

a. [ Pref. anti- = Gr. kla^n to break. ] Having opposite curvatures, that is, curved longitudinally in one direction and transversely in the opposite direction, as the surface of a saddle. [ 1913 Webster ]

adj. 1. 1 protected with a covering of armor.
Syn. -- steel-plated. [ WordNet 1.5 ]

a. [ See Auto-; Clastic. ] (Geol.) Broken in place; -- said of rocks having a broken or brecciated structure due to crushing, in contrast to those of brecciated materials brought from a distance. [ Webster 1913 Suppl. ]

n. [ F., fr. Gr. a'yto`s self + L. clavis key. ] 1. A kind of French stewpan with a steam-tight lid. Knight. [ 1913 Webster ]

2. a device used for sterilizing objects by exposing them to steam at above atmospheric pressure (and thus at a temperature above the normal boiling point of water). It consists of a closed chamber able to withstand internal pressure, and a means of passing superheated steam into the chamber. Autoclaves are made in various sizes, and are much used in hospitals and research laboratories to render instruments and equipment sterile. [ PJC ]

n. close-fitting and woolen and covers all of the head but the face.
Syn. -- balaclava helmet. [ WordNet 1.5 ]

n. [ D. baar, OD. baer, naked, bare + kleed garment, i. e., cloth undressed or without nap. ] A home-made woolen blanket without nap. [ Local, New York ] Bartlett. [ 1913 Webster ]

v. t. [ OE. biclappen. ] To catch; to grasp; to insnare. [ Obs. ] Chaucer. [ 1913 Webster ]

. (Law) A clause, as in a blanket mortgage or policy, that includes a group or class of things, rather than a number mentioned individually and having the burden, loss, or the like, apportioned among them. [ Webster 1913 Suppl. ]

n. [ Ir. bainne, baine, milk + clabar mud, mire. ] Coagulated sour milk; loppered milk; curdled milk; -- sometimes called simply clabber. B. Jonson. [ 1913 Webster ]

v. t. To treat with cruel playfulness, as a cat treats a mouse; to abuse. [ Obs. ] Birch. [ 1913 Webster ]

n. [ Gr. &unr_;; &unr_; down + &unr_; to break. ] A breaking asunder; disruption. [ Webster 1913 Suppl. ]

n. [ Of. ciclaton. ] A costly cloth, of uncertain material, used in the Middle Ages. [ Obs. ] [ Written also checklaton, chekelatoun. ] [ 1913 Webster ]

His robe was of ciclatoun,
That coste many a Jane. Chaucer. [ 1913 Webster ]

n. [ See Bonnyclabber ] Milk curdled so as to become thick. [ 1913 Webster ]

v. i. To become clabber; to lopper. [ 1913 Webster ]

n. [ Scot., fr. Gael. ] A small village containing a church. [ Scot. ] Sir W. Scott [ 1913 Webster ]

Sitting at the clachon alehouse. R. L. Stevenson. [ 1913 Webster ]

v. i. [ imp. & p. p. Clacked p. pr. & vb. n. Clacking. ] [ Prob. of imitative origin; cf. F.claquer to clap, crack, D. klakken, MHG. klac crack, Ir. clagaim I make a noise, ring. Cf. Clack, n., Clatter, Click. ] 1. To make a sudden, sharp noise, or a succesion of such noises, as by striking an object, or by collision of parts; to rattle; to click. [ 1913 Webster ]

We heard Mr.Hodson's whip clacking on the ahoulders of the poor little wretches. Thackeray. [ 1913 Webster ]

2. To utter words rapidly and continually, or with abruptness; to let the tongue run. [ 1913 Webster ]

v. t. 1. To cause to make a sudden, sharp noise, or succession of noises; to click. [ 1913 Webster ]

2. To utter rapidly and inconsiderately. Feltham. [ 1913 Webster ]

To clack wool, to cut off the sheep's mark, in order to make the wool weigh less and thus yield less duty. [ Eng. ] [ 1913 Webster ]

n. [ Cf. F. claque a slap or smack, MHG. klac crack, W. clec crack, gossip. See Clack, v. t. ] 1. A sharp, abrupt noise, or succession of noises, made by striking an object. [ 1913 Webster ]

2. Anything that causes a clacking noise, as the clapper of a mill, or a clack valve. [ 1913 Webster ]

3. Continual or importunate talk; prattle; prating. [ 1913 Webster ]

Whose chief intent is to vaunt his spiritual clack. South. [ 1913 Webster ]

Clack box (Mach.), the box or chamber in which a clack valve works. --
Clack dish, a dish with a movable lid, formerly carried by beggars, who clacked the lid to attract notice. Shak. [ 1913 Webster ]

Clack door (Mining), removable cover of the opening through which access is had to a pump valve. --
Clack valve (Mach.), a valve; esp. one hinged at one edge, which, when raised from its seat, falls with a clacking sound. [ 1913 Webster ]

n. 1. One who clacks; that which clacks; especially, the clapper of a mill. [ 1913 Webster ]

2. A claqueur. See Claqueur. [ 1913 Webster ]

v. t. To clothe. [ Obs. ] Holland. [ 1913 Webster ]

imp. & p. p. of Clothe. [ 1913 Webster ]

‖n. pl. [ NL., fr. Gr. &unr_; a sprout + &unr_; a horn. ] (Zool.) An order of the Entomostraca. [ 1913 Webster ]

☞ They have a bivalve shell, covering the body but not the head, and from four to six pairs of legs and two pairs of antenæ, for use in swimming. They mostly inhabit fresh water. [ 1913 Webster ]

n. a flattened stem resembling and functioning as a leaf.
Syn. -- cladophyll, phylloclad, phylloclade. [ WordNet 1.5 ]

n. the type genus of Cladoniaceae; lichens characterized by a crustose thallus and capitate fruiting bodies borne on simple or branched podetia.
Syn. -- genus Cladonia. [ WordNet 1.5 ]

n. [ Gr. &unr_; a sprout + &unr_; a leaf. ] (Bot.) A special branch, resembling a leaf, as in the apparent foliage of the broom (Ruscus) and of the common cultivated smilax (Myrsiphillum). [ 1913 Webster ]

a. [ Cf. Clog. ] Adhesive; -- said of a roof in a mine to which coal clings. [ 1913 Webster ]

n. See Clake. [ 1913 Webster ]

{ } n. (Zool.) The bernicle goose; -- now called barnacle goose and also called clack goose. [ 1913 Webster ]

v. t. [ imp. & p. p. Claimed p. pr. & vb. n. Claiming. ] [ OE. clamen, claimen, OF. clamer, fr. L. clamare to cry out, call; akin to calare to proclaim, Gr. kalei^n to call, Skr. kal to sound, G. holen to fetch, E. hale haul. ] 1. To ask for, or seek to obtain, by virtue of authority, right, or supposed right; to challenge as a right; to demand as due. [ 1913 Webster ]

2. To proclaim. [ Obs. ] Spenser. [ 1913 Webster ]

3. To call or name. [ Obs. ] Spenser. [ 1913 Webster ]

4. To assert; to maintain. [ Colloq. ] [ 1913 Webster ]

v. i. To be entitled to anything; to deduce a right or title; to have a claim. [ 1913 Webster ]

We must know how the first ruler, from whom any one claims, came by his authority. Locke. [ 1913 Webster ]

n. [ Of. claim cry, complaint, from clamer. See Claim, v. t. ] 1. A demand of a right or supposed right; a calling on another for something due or supposed to be due; an assertion of a right or fact. [ 1913 Webster ]

2. A right to claim or demand something; a title to any debt, privilege, or other thing in possession of another; also, a title to anything which another should give or concede to, or confer on, the claimant. “A bar to all claims upon land.” Hallam. [ 1913 Webster ]

3. The thing claimed or demanded; that (as land) to which any one intends to establish a right; ; as, a settler's claim; a miner's claim. [ U.S. & Australia ] [ 1913 Webster ]

4. A loud call. [ Obs. ] Spenser [ 1913 Webster ]

To lay claim to, to demand as a right. “Doth he lay claim to thine inheritance?” Shak. [ 1913 Webster ]

a. Capable of being claimed. [ 1913 Webster ]

n. [ Cf. OF. clamant, p. pr. of clamer. Cf. Clamant. ] One who claims; one who asserts a right or title; a claimer. [ 1913 Webster ]

n. One who claims; a claimant. [ 1913 Webster ]

a. Having no claim. [ 1913 Webster ]

n. [ F. clair clear + F. & E. audience a hearing. See Clear. ] Act of hearing, or the ability to hear, sounds not normally audible; -- usually claimed as a special faculty of spiritualistic mediums, or the like. [ Webster 1913 Suppl. ]

a. Pertaining to, or characterized by, clairaudience. [ Webster 1913 Suppl. ]