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

a. Pertaining to an achene. [ 1913 Webster ]

{ n. [ Gr. 'a priv. + &unr_; to gape. ] (Bot.) A small, dry, indehiscent fruit, containing a single seed, as in the buttercup; -- called a naked seed by the earlier botanists. [ Written also akene and achænium. ] [ 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. [ Aden- + -form. ] Shaped like a gland; adenoid. Dunglison. [ 1913 Webster ]

‖n. [ Aden- + -itis. ] (Med.) Glandular inflammation. Dunglison. [ 1913 Webster ]

‖n. [ Aden- + -itis. ] (Med.) Glandular inflammation. Dunglison. AS [ 1913 Webster ]

a. [ L. adviens, p. pr. ] Coming from outward causes; superadded. [ Obs. ] [ 1913 Webster ]

v. t. [ imp. & p. p. Albumenized p. pr. & vb. n. Albumenizing. ] To cover or saturate with albumen; to coat or treat with an albuminous solution; as, to albumenize paper. [ 1913 Webster ]

n. (Metal.) An alloy of nickel and silver electroplated with silver. [ 1913 Webster ]

n. 1. The status or legal condition of an alien; alienage. [ 1913 Webster ]

The law was very gentle in the construction of the disability of alienism. Kent. [ 1913 Webster ]

2. The study or treatment of diseases of the mind. [ 1913 Webster ]

n. [ F. aliéniste. ] One who treats diseases of the mind. Ed. Rev. [ 1913 Webster ]

a. Also . (Biogeography) Pertaining to or designating the humid division of the Transition zone extending across the northern United States from New England to eastern Dakota, and including also most of Pennsylvania and the mountainous region as far south as northern Georgia. [ Webster 1913 Suppl. ]

adj. 1. of or pertaining to allergens or allergenicity. [ WordNet 1.5 ]

2. causing an allergy or an allergic reaction. [ PJC ]

a. [ Gr. &unr_; together + &unr_; force. ] (Photog.) Uniting the chemical rays of light into one focus, as a certain kind of lens; amacratic. [ 1913 Webster ]

n. 1. absence or suppression of normal menstrual flow.
Syn. -- amenorrhea [ WordNet 1.5 ]

n. 1. things that make you comfortable and at ease. all the amenities of a first-class hotel
Syn. -- comforts, creature comforts, conveniences [ WordNet 1.5 ]

n.; pl. Amenities [ F. aménité, L. amoenitas, fr. amoenus pleasant. ] The quality of being pleasant or agreeable, whether in respect to situation, climate, manners, or disposition; pleasantness; civility; suavity; gentleness. [ 1913 Webster ]

A sweetness and amenity of temper. Buckle. [ 1913 Webster ]

This climate has not seduced by its amenities. W. Howitt. [ 1913 Webster ]

a. 1. Of or pertaining to amylogen. [ Webster 1913 Suppl. ]

2. Forming starch; -- applied specif. to leucoplasts. [ Webster 1913 Suppl. ]

n. 1. a bee that is a a member of the genus Andrena..
Syn. -- andrena, mining bee [ WordNet 1.5 ]

n. 1. 1 a large family of solitary short-tongued bees most of which burrow in the ground.
Syn. -- family Andrenidae. [ WordNet 1.5 ]

adj. 1. of or pertaining to androgens; having physiological effects like that of an androgen. [ WordNet 1.5 +PJC ]

a. [ Gr. &unr_; unequal + &unr_; strength. ] Of unequal strength. [ 1913 Webster ]

adj. 1. causing loss of appetite; as, an anorectic (or anorexigenic) drug.
Syn. -- anorectic [ WordNet 1.5 +PJC ]

a. [ L. ] Of or in the Christian church or era, anterior to the first council of Nice, held a. d. 325; as, antenicene faith. [ 1913 Webster ]

a. 1. Of or pertaining to anthropogeny. [ 1913 Webster ]

2. (1923) caused by humans; -- as, the anthropogenic extinction of species. [ PJC ]

n. [ Written also antivenen, antivenine. ] [ Pref. anti- + L. venenum poison. ] (Physiol. Chem.) The serum of blood rendered antitoxic to a venom by repeated injections of small doses of the venom; also, the component of such a serum which is antitoxic to the venom. [ Webster 1913 Suppl. +PJC ]

n. [ L. arena sand + colere to cherish or live. ] (Paleon.) An ancient wormhole in sand, preserved in the rocks. Dana. [ 1913 Webster ]

adj. 1. growing or living or burrowing in sand. arenicolous worms [ WordNet 1.5 ]

a. [ L. arena sand + Gr. li`qos stone. ] Of or pertaining to sandstone; as, arenilitic mountains. Kirwan. [ 1913 Webster ]

n. 1. 1 a genus comprising the orange tortrix.
Syn. -- genus Argyrotaenia. [ WordNet 1.5 ]

n. 1. a country in the Caucasus, formerly a part of the Soviet Union. [ WordNet 1.5 +PJC ]

a. [ Cf. F. Arménien, L. Armenias, fr. Armenia. ] Of or pertaining to Armenia. [ 1913 Webster ]

Armenian bole, a soft clayey earth of a bright red color found in Armenia, Tuscany, etc. --
Armenian stone. (a) The commercial name of lapis lazuli. (b) Emery. [ 1913 Webster ]

n. 1. A native or one of the people of Armenia; also, the language of the Armenians. [ 1913 Webster ]

2. (Eccl. Hist.) An adherent of the Armenian Church, an organization similar in some doctrines and practices to the Greek Church, in others to the Roman Catholic. [ 1913 Webster ]

n. See Arsenate. [ R. ] [ 1913 Webster ]

n. [ L. arsenicum, Gr. 'arseniko`n, 'arreniko`n, yellow orpiment, perh. fr. 'arseniko`s or better Attic 'arreniko`s masculine, 'a`rrhn male, on account of its strength, or fr. Per. zernīkh: cf. F. arsenic. ] 1. (Chem.) One of the elements, a solid substance resembling a metal in its physical properties, but in its chemical relations ranking with the nonmetals. It is of a steel-gray color and brilliant luster, though usually dull from tarnish. It is very brittle, and sublimes at 356° Fahrenheit. It is sometimes found native, but usually combined with silver, cobalt, nickel, iron, antimony, or sulphur. Orpiment and realgar are two of its sulphur compounds, the first of which is the true arsenicum of the ancients. The element and its compounds are active poisons. Specific gravity from 5.7 to 5.9. Atomic weight 75. Symbol As. [ 1913 Webster ]

2. (Com.) Arsenious oxide or arsenious anhydride; -- called also arsenious acid, white arsenic, and ratsbane. [ 1913 Webster ]

a. (Chem.) Pertaining to, or derived from, arsenic; -- said of those compounds of arsenic in which this element has its highest equivalence; as, arsenic acid. [ 1913 Webster ]

a. Of or pertaining to, or containing, arsenic; as, arsenical vapor; arsenical wall papers. [ 1913 Webster ]

Arsenical silver, an ore of silver containing arsenic. [ 1913 Webster ]

v. t. [ imp. & p. p. Arsenicated; p. pr. & vb. n. Arsenicating. ] To combine with arsenic; to treat or impregnate with arsenic. [ 1913 Webster ]

n. (Med.) A diseased condition produced by slow poisoning with arsenic. [ 1913 Webster ]

n. (Chem.) A compound of arsenic with a metal, or positive element or radical; -- formerly called arseniuret. [ 1913 Webster ]

a. [ Arsenic + -ferous. ] Containing or producing arsenic. [ 1913 Webster ]

a. [ Cf. F. arsénieux. ] 1. Pertaining to, consisting of, or containing, arsenic; as, arsenious powder or glass. [ 1913 Webster ]

2. (Chem.) Pertaining to, or derived from, arsenic, when having an equivalence next lower than the highest; as, arsenious acid. [ 1913 Webster ]

n. [ Cf. F. arsénite. ] (Chem.) A salt formed by the union of arsenious acid with a base. [ 1913 Webster ]

n. (Chem.) See Arsenide. [ 1913 Webster ]

a. (Chem.) Combined with arsenic; -- said some elementary substances or radicals; as, arseniureted hydrogen. [ Also spelt arseniuretted. ] [ 1913 Webster ]

a. [ Gr. 'asqeniko`s; 'a priv. + sqe`nos strength. ] (Med.) Characterized by, or pertaining to, debility; weak; debilitating. [ 1913 Webster ]

{ ‖ } n. [ NL. asthenia, Gr. 'asqe`nia; 'a priv. + sqe`nos strength. ] (Med.) Want or loss of strength; debility; diminution of the vital forces. [ 1913 Webster ]

a. [ Cf. F. Athénien. ] Of or pertaining to Athens, the metropolis of Greece. -- n. A native or citizen of Athens. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_;, fr. &unr_; the neck. ] (Zool.) The part of the neck nearest the back. [ 1913 Webster ]