a. 1. So tight as to be impermeable to air or other gases; as, an air-tight cylinder; -- said of containers. [ 1913 Webster ]

2. of such close construction as to have little leakage of air in or out; -- said of structures [ WordNet 1.5 ]

3. so thoroughly convincing as to be insusceptible to doubt; having no apparent counterarguments; -- of arguments or assertions an airtight alibi an airtight argument
Syn. -- airtight, uncontradictable, undeniable. [ PJC ]

n. A stove the draft of which can be almost entirely shut off. [ Colloq. U. S. ] [ 1913 Webster ]

n. 1. compound lens or lens system designed to be free of astigmatism and able to form approximately point images. [ WordNet 1.5 ]

a. [ Pref. an-not + astigmatic. ] (Optics) Not astigmatic; free of astigmatism; -- pertaining to a lens or lens system, and used especially of a lens system which consists of a converging lens and a diverging lens of equal and opposite astigmatism but different focal lengths, and sensibly free from astigmatism. [ Webster 1913 Suppl. + WordNet 1.5 ]

a. [ Pref. anti- + Gr. &unr_;, &unr_;, milk. ] Causing a diminution or a suppression of the secretion of milk. [ 1913 Webster ]

n. [ Gr. &unr_; a transcribing: cf. F. antigraphe. ] A copy or transcript. [ 1913 Webster ]

pos>n. [ Pref. anti- + guggle or gurgle. ] A crooked tube of metal, to be introduced into the neck of a bottle for drawing out the liquid without disturbing the sediment or causing a gurgling noise. [ 1913 Webster ]

a. (Med. & Opt.) Affected with, or pertaining to, astigmatism; as, astigmatic eyes; also, remedying astigmatism; as, astigmatic lenses. [ 1913 Webster ]

n. [ Gr. 'a priv. + &unr_;, &unr_;, a prick of a pointed instrument, a spot, fr. &unr_; to prick: cf. F. astigmatisme. ] (Med. & Opt.) A defect of the eye or of a lens, in consequence of which the rays derived from one point are not brought to a single focal point, thus causing imperfect images or indistinctness of vision. [ 1913 Webster ]

☞ The term is applied especially to the defect causing images of lines having a certain direction to be indistinct, or imperfectly seen, while those of lines transverse to the former are distinct, or clearly seen. [ 1913 Webster ]

a. [ L. attiguus, fr. attingere to touch. See Attain. ] Touching; bordering; contiguous. [ Obs. ] [ 1913 Webster ]

-- At*tig"u*ous*ness, n. [Obs.] [1913 Webster]

v. t. [ imp. & p. p. Castigated; p. pr. & vb. n. Castigating. ] [ L. castigatus, p. p. of castigare to correct, punish; castus pure, chaste + agere to move, drive. See Caste, and cf. Chasten. ] 1. To punish by stripes; to chastise by blows; to chasten; also, to chastise verbally; to reprove; to criticise severely. [ 1913 Webster ]

2. To emend; to correct. [ Obs. ] [ 1913 Webster ]

n. [ L. catigatio. ] [ 1913 Webster ]

1. Corrective punishment; chastisement; reproof; pungent criticism. [ 1913 Webster ]

The keenest castigation of her slanderers. W. Irving. [ 1913 Webster ]

2. Emendation; correction. [ Obs. ] [ 1913 Webster ]

n. [ L. ] One who castigates or corrects. [ 1913 Webster ]

a. [ L. castigatorius. ] Punitive in order to amendment; corrective. [ 1913 Webster ]

n. An instrument formerly used to punish and correct arrant scolds; -- called also a ducking stool, or trebucket. Blacktone. [ 1913 Webster ]

a. [ L. centum a hundred + gradus degree: cf. F. centigrade. ] Consisting of a hundred degrees; graduated into a hundred divisions or equal parts. Specifically: Of or pertaining to the centigrade thermometer; as, 10° centigrade (or 10° C.). In measurements, abreviated C. [ 1913 Webster ]

Centigrade thermometer, a thermometer having the zero or 0 at the point indicating the freezing state of water, and the distance between that and the point indicating the boiling state of water divided into one hundred degrees. It is called also the Celsius thermometer, from Anders Celsius, the originator of this scale. Measurements are reported as ° C. [ 1913 Webster ]

{ } n. [ F. centigramme; centi- (L. centum) + gramme. See Gram. ] The hundredth part of a gram; a mass equal to .15432 of a grain. See 3rd Gram. [ 1913 Webster ]

‖n. pl. [ NL., fr. L. citus swift (p. p. of cire, ciere, to move) + gradi to walk. See Cite. ] (Zool.) A suborder of Arachnoidea, including the European tarantula and the wolf spiders (Lycosidae) and their allies, which capture their prey by rapidly running and jumping. See Wolf spider. [ 1913 Webster ]

a. [ Cf. F. citigrade. ] (Zool.) Pertaining to the Citigradæ. -- n. One of the Citigradæ. [ 1913 Webster ]

a. Disputing or wrangling. [ Obs. ] -- n. One who litigates or wrangles. [ Obs. ] [ 1913 Webster ]

n. [ L. contignatio, fr. contignare to join with beams; con- + tignum beam. ] 1. The act or process of framing together, or uniting, as beams in a fabric. Burke. [ 1913 Webster ]

2. A framework or fabric, as of beams. Sir H. Wotton. [ 1913 Webster ]

a. [ LL. contiguatus. ] Contiguous; touching. [ Obs. ] Holland. [ 1913 Webster ]

n. [ Cf. F. contiguité, LL. contiguitas. ] The state of being contiguous; intimate association; nearness; proximity. [ 1913 Webster ]

The convicinity and contiguity of the two parishes. T. Warton. [ 1913 Webster ]

a. [ L. contiguus; akin to contigere to touch on all sides. See Contingent. ] In actual contact; touching; also, adjacent; near; neighboring; adjoining. [ 1913 Webster ]

The two halves of the paper did not appear fully divided . . . but seemed contiguous at one of their angles. Sir I. Newton. [ 1913 Webster ]

Sees no contiguous palace rear its head. Goldsmith. [ 1913 Webster ]

Contiguous angles. See Adjacent angles, under Angle.

Syn. -- Adjoining; adjacent. See Adjacent.

-- Con*tig"u*ous*ly, adv. -- Con*tig"u*ous*ness, n. [ 1913 Webster ]

a. [ See Defatigate. ] Capable of being wearied or tired out. [ R. ] Glanvill. [ 1913 Webster ]

v. t. [ L. defatigatus, p. p. of defatigare; de- + fatigare to weary. See Fatigue. ] To weary or tire out; to fatigue. [ R. ] Sir T. Herbert. [ 1913 Webster ]

n. [ L. defatigatio. ] Weariness; fatigue. [ R. ] Bacon. [ 1913 Webster ]

v. i. [ L. delitigare to rail. See Litigate. ] To chide; to rail heartily. [ Obs. ] [ 1913 Webster ]

n. Chiding; brawl. [ Obs. ] [ 1913 Webster ]

a. [ L. dens, dentis, tooth + -gerous. ] Bearing teeth or toothlike structures. [ 1913 Webster ]

n. (Zool.) An animal that walks on its toes, as the cat, lion, wolf, etc.; -- distinguished from a plantigrade, which walks on the palm of the foot. [ 1913 Webster ]

a. [ L. digitus finger, toe + gradi to step, walk: cf. F. digitigrade. ] (Zool.) Walking on the toes; -- distinguished from plantigrade. [ 1913 Webster ]

v. t. [ L. evestigatus traced out; e out + vestigatus, p. p. of vestigare. See Vestigate. ] To investigate. [ Obs. ] Bailey. [ 1913 Webster ]

{ , n. [ Written also fanteague, fanteeg, etc. ] [ Cf. Fantod. ] State of worry or excitment; fidget; ill humor. [ Prov. Eng. ] Dickens. [ Webster 1913 Suppl. ]

{ } a. [ L. fastigium gable end, top, height, summit. ] 1. Narrowing towards the top. [ 1913 Webster ]

2. (Bot.) Clustered, parallel, and upright, as the branches of the Lombardy poplar; pointed. [ 1913 Webster ]

3. (Zool.) United into a conical bundle, or into a bundle with an enlarged head, like a sheaf of wheat. [ 1913 Webster ]

a. [ L. fatigabilis: cf. F. fatigable. See Fatigue. ] Easily tired. [ Obs. ] Bailey. [ 1913 Webster ]

a. [ L. fatigatus, p. p. of fatigare. See Fatigue. ] Wearied; tired; fatigued. [ Obs. ] [ 1913 Webster ]

Requickened what in flesh was fatigate. Shak. [ 1913 Webster ]

v. t. To weary; to tire; to fatigue. [ Obs. ] Sir T. Elyot. [ 1913 Webster ]

n. [ L. fatigatio: cf. OF. fatigation. ] Weariness. [ Obs. ] W. Montaqu. [ 1913 Webster ]

n. [ F., fr. fatiguer to fatigue, L. fatigare; cf. L. affatim sufficiently. ] 1. Weariness from bodily labor or mental exertion; lassitude or exhaustion of strength. [ 1913 Webster ]

2. The cause of weariness; labor; toil; as, the fatigues of war. Dryden. [ 1913 Webster ]

3. The weakening of a metal when subjected to repeated vibrations or strains. [ 1913 Webster ]

Fatigue call (Mil.), a summons, by bugle or drum, to perform fatigue duties. --
Fatigue dress, the working dress of soldiers. --
Fatigue duty (Mil.), labor exacted from soldiers aside from the use of arms. Farrow. --
Fatigue party, a party of soldiers on fatigue duty. [ 1913 Webster ]

v. t. [ imp. & p. p. Fatigued p. pr. & vb. n. Fatiguing, n. ] [ Cf. F. fatiguer. See Fatigue, n. ] To weary with labor or any bodily or mental exertion; to harass with toil; to exhaust the strength or endurance of; to tire.

Syn. -- To jade; tire; weary; bore. See Jade. [ 1913 Webster ]

n. An imp. Shak. [ 1913 Webster ]

n. A wanton, pert girl. [ Obs. ] [ 1913 Webster ]

‖/mhw>, n. [ So called from Frontignan, a town in Southern France. ] 1. A sweet muscadine wine made in Frontignan (Languedoc), France. [ 1913 Webster ]

2. (Bot.) A grape of many varieties and colors. [ 1913 Webster ]

v. t. [ L. fustigare, fr. fustis stick. See 1st Fust. ] To cudgel. [ R. ] Bailey. [ 1913 Webster ]

n. [ Cf. F. fustigation. ] A punishment by beating with a stick or club; cudgeling. [ 1913 Webster ]

This satire, composed of actual fustigation. Motley. [ 1913 Webster ]

a. So tightly fitted as to preclude the escape of gas; impervious to gas. [ 1913 Webster ]

n. [ Gelatin + -genous. ] (Physiol. Chem.) Producing, or yielding, gelatin; gelatiniferous; as, the gelatigeneous tissues.

a. As tight as can be made by the hand; as, to tighten the nut hand-tight. Totten. [ 1913 Webster +PJC ]

a. Hoity-toity. [ 1913 Webster ]