The Age of Acrogens(Geol.), the age of coal plants, or the carboniferous era.

Acrogenous
(Ac*rog"e*nous) a. (Bot.) Increasing by growth from the extremity; as, an acrogenous plant.

Acrolein
(A*cro"le*in) n. [L. acer sharp + olere to smell.] (Chem.) A limpid, colorless, highly volatile liquid, obtained by the dehydration of glycerin, or the destructive distillation of neutral fats containing glycerin. Its vapors are intensely irritating. Watts.

Acrolith
(Ac"ro*lith) n. [L. acrolthus, Gr. 'akroli`qos with the ends made of stone; 'a`kros extreme + li`qos stone.] (Arch. & Sculp.) A statue whose extremities are of stone, the trunk being generally of wood. Elmes.

Acrolithan
(A*crol"i*than Ac`ro*lith"ic) a. Pertaining to, or like, an acrolith.

Acromegaly
(Ac`ro*meg"a*ly) n. [NL. acromegalia, fr. Gr. 'a`kron point, peak + big.] (Med.) Chronic enlargement of the extremities and face.

Acromial
(A*cro"mi*al) a. [Cf. F. acromial.] (Anat.) Of or pertaining to the acromion. Dunglison.

Acromion
(||A*cro"mi*on) n. [Gr. 'a`kros extreme + shoulder: cf. F. acromion.] (Anat.) The outer extremity of the shoulder blade.

Acromonogrammatic
(Ac`ro*mon`o*gram*mat"ic) a. [Gr. 'a`kros extreme + alone + a letter.] Having each verse begin with the same letter as that with which the preceding verse ends.

Acrobat
(Ac"ro*bat) n. [F. acrobate, fr. Gr. walking on tiptoe, climbing aloft; high + to go.] One who practices rope dancing, high vaulting, or other daring gymnastic feats.

Acrobatic
(Ac`ro*bat"ic) a. [Cf. F. acrobatique.] Pertaining to an acrobat.

Ac`ro*bat"ic*al*ly, adv.

Acrobatism
(Ac"ro*bat*ism) n. Feats of the acrobat; daring gymnastic feats; high vaulting.

Acrocarpous
(Ac`ro*car"pous) a. [Gr. extreme, highest + fruit.] (Bot.) (a) Having a terminal fructification; having the fruit at the end of the stalk. (b) Having the fruit stalks at the end of a leafy stem, as in certain mosses.

Acrocephalic
(Ac`ro*ce*phal"ic) a. [Gr. highest + . See Cephalic.] Characterized by a high skull.

Acrocephaly
(Ac`ro*ceph"a*ly) n. Loftiness of skull.

Acroceraunian
(Ac`ro*ce*rau"ni*an) a. [L. acroceraunius, fr. Gr. high, n. pl. heights + thunderbolt.] Of or pertaining to the high mountain range of "thunder- smitten" peaks between Epirus and Macedonia. Shelley.

Acrodactylum
(||Ac`ro*dac"tyl*um) n. [NL., from Gr. topmost + finger.] (Zoöl.) The upper surface of the toes, individually.

Acrodont
(Ac"ro*dont) n. [Gr. 'a`kros summit + 'odoy`s, 'odo`ntos, a tooth.] (Zoöl.) One of a group of lizards having the teeth immovably united to the top of the alveolar ridge.a. Of or pertaining to the acrodonts.

Acrogen
(Ac"ro*gen) n. [Gr. 'a`kros extreme, high + -gen.] (Bot.) A plant of the highest class of cryptogams, including the ferns, etc. See Cryptogamia.


  By PanEris using Melati.

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