n. [ Gr. 'a priv. + bi`os life + ge`nesis, origin, birth. ] (Biol.) The supposed origination of living organisms from lifeless matter; such genesis as does not involve the action of living parents; spontaneous generation; -- called also abiogeny, and opposed to biogenesis. [ 1913 Webster ]

I shall call the . . . doctrine that living matter may be produced by not living matter, the hypothesis of abiogenesis. Huxley, 1870. [ 1913 Webster ]

a. (Biol.) Of or pertaining to abiogenesis. Ab`i*o*ge*net"ic*al*ly, adv. [1913 Webster]

n. (Biol.) One who believes that life can be produced independently of antecedent. Huxley. [ 1913 Webster ]

a. (Biol.) Produced by spontaneous generation. [ 1913 Webster ]

n. (Biol.) Same as Abiogenesis. [ 1913 Webster ]

a. [ Gr. 'a priv. + E. biological. ] Pertaining to the study of inanimate things. [ 1913 Webster ]

a. Capable of being abrogated. [ 1913 Webster ]

a. [ L. abrogatus, p. p. ] Abrogated; abolished. [ Obs. ] Latimer. [ 1913 Webster ]

v. t. [ imp. & p. p. Abrogated; p. pr. & vb. n. Abrogating. ] [ L. abrogatus, p. p. of abrogare; ab + rogare to ask, require, propose. See Rogation. ] 1. To annul by an authoritative act; to abolish by the authority of the maker or his successor; to repeal; -- applied to the repeal of laws, decrees, ordinances, the abolition of customs, etc. [ 1913 Webster ]

Let us see whether the New Testament abrogates what we so frequently see in the Old. South. [ 1913 Webster ]

Whose laws, like those of the Medes and Persian, they can not alter or abrogate. Burke. [ 1913 Webster ]

2. To put an end to; to do away with. Shak. [ 1913 Webster ]

Syn. -- To abolish; annul; do away; set aside; revoke; repeal; cancel; annihilate. See Abolish. [ 1913 Webster ]

n. [ L. abrogatio, fr. abrogare: cf. F. abrogation. ] The act of abrogating; repeal by authority. Hume. [ 1913 Webster ]

a. Tending or designed to abrogate; as, an abrogative law. [ 1913 Webster ]

n. One who repeals by authority. [ 1913 Webster ]

n. [ Accelerate + -graph. ] (Mil.) An apparatus for studying the combustion of powder in guns, etc. [ 1913 Webster ]

a. Pertaining to acology. [ 1913 Webster ]

n. [ Gr. &unr_; remedy + -logy. ] Materia medica; the science of remedies. [ 1913 Webster ]

n. [ Gr. 'a`kros extreme, high + -gen. ] (Bot.) A plant of the highest class of cryptogams, including the ferns, etc. See Cryptogamia. [ 1913 Webster ]

The Age of Acrogens (Geol.), the age of coal plants, or the carboniferous era. [ 1913 Webster ]

adj. 1. 1 pertaining to acrogens, flowerless plants (ferns or mosses) in which growth occurs only at the tip of the main stem.
Syn. -- acrogenous [ WordNet 1.5 ]

a. (Bot.) Increasing by growth from the extremity; as, an acrogenous plant. [ 1913 Webster ]

a. [ Gr. 'a`kros extreme + &unr_; alone + &unr_; a letter. ] Having each verse begin with the same letter as that with which the preceding verse ends. [ 1913 Webster ]

n. [ Gr. &unr_;, &unr_;, ray + -gram. ] A record made by the actinograph.
[ Obsolescent ] [ Webster 1913 Suppl. ]

n. [ Gr. &unr_;, &unr_;, ray + -graph. ] An instrument for measuring and recording the variations in the actinic or chemical force of rays of light. Nichol. [ 1913 Webster ]

n. [ Gr. &unr_;, &unr_;, ray + -logy. ] The science which treats of rays of light, especially of the actinic or chemical rays. [ 1913 Webster ]

n. 1. a printer that automatically prints addresses on letters for mailing.
Syn. -- addressing machine [ WordNet 1.5 ]

a. Pertaining to adenography. [ 1913 Webster ]

n. [ Adeno- + -graphy. ] That part of anatomy which describes the glands. [ 1913 Webster ]

a. Pertaining to adenology. [ 1913 Webster ]

n. [ Adeno- + -logy. ] The part of physiology that treats of the glands. [ 1913 Webster ]

a. [ See Adipose; -genous. ] (Med.) Producing fat. AS [ Webster 1913 Suppl. ]

v. t. [ See Arrogate. ] (Rom. Law) To adopt (a person who is his own master). [ 1913 Webster ]

n. [ L. adrogatio, arrogatio, fr. adrogare. See Arrogate. ] (Rom. Law) A kind of adoption in ancient Rome. See Arrogation. [ 1913 Webster ]

n. [ Aëro- + Gr. &unr_; knowing, knowledge: cf. F. aérognosie. ] The science which treats of the properties of the air, and of the part it plays in nature. Craig. [ 1913 Webster ]

n. One versed in aëography: an aërologist. [ 1913 Webster ]

{ } a. Pertaining to aërography; aërological. [ 1913 Webster ]

n. [ Aëro- + -graphy: cf. F. aérographie. ] A description of the air or atmosphere; aërology. [ 1913 Webster ]

n. [ Aëro- + gun. ] A cannon capable of being trained at very high angles for use against aircraft. Now usually referred to an anitaircraft cannon. [ Webster 1913 Suppl. +PJC ]

n. [ Aëro- + lithology. ] The science of aërolites. [ 1913 Webster ]

{ } a. Of or pertaining to aërology. [ 1913 Webster ]

n. One versed in aërology. [ 1913 Webster ]

n. [ Aëro- + -logy: cf. F. aérologie. ] That department of physics which treats of the atmosphere. [ 1913 Webster ]

n. [ Gr. &unr_; to perceive + E. physiology. ] The science of sensation in relation to nervous action. H. Spenser. [ 1913 Webster ]

a. [ Gr. &unr_; unusual ('a priv. + &unr_; custom) + &unr_; marriage. ] (Bot.) Propagated in an unusual way; cryptogamous. [ 1913 Webster ]

n. [ Gr. &unr_; fire, light + -gen. ] (Chem.) A compound of nitrogen and boro&unr_;, which, when heated before the blowpipe, gives a brilliant phosphorescent; boric nitride. [ 1913 Webster ]

a. Pertaining to ætiology; pertaining to the cause; assigning a cause. -- Æ`ti*o*log"ic*al*ly, adv. [1913 Webster]

n. [ L. aetologia, Gr. a'itiologi`a; a'iti`a cause + lo`gos description: cf. F. étiologie. ] 1. The science, doctrine, or demonstration of causes; esp., the investigation of the causes of any disease; the science of the origin and development of things; etiology. AS [ 1913 Webster ]

2. The assignment of a cause. [ 1913 Webster ]

3. (Med.) The cause or origin of a disease. Now more commonly written etiology. [ PJC + AS ]

n. (Zool.) same as African wild dog.
Syn. -- painted wolf, African hunting dog. [ PJC ]

n. 1. 1 (Zool.) a dog (Lycaon pictus) with mottled fur found in Africa, notable for the strong social structure of its family groups.
Syn. -- painted wolf, African hunting dog. [ PJC ]

‖n. [ Gr. &unr_; unmarried ('a priv. + &unr_; marriage) + &unr_; reproduction. ] (Biol.) Reproduction without the union of parents of distinct sexes: asexual reproduction. [ 1913 Webster ]

n. (Biol.) Reproducing or produced without sexual union. -- Ag`a*mo*ge*net"ic*al*ly adv. [1913 Webster]

All known agamogenetic processes end in a complete return to the primitive stock. Huxley. [1913 Webster]

n. [ Gr. 'a`gnoia ignorance + -logy. ] (Metaph.) The doctrine concerning those things of which we are necessarily ignorant. [ 1913 Webster ]

a. & adv. [ Cf. F. gogue fun, perhaps of Celtic origin. ] In eager desire; eager; astir. [ 1913 Webster ]

All agog to dash through thick and thin. Cowper. [ 1913 Webster ]