a. (Zool.) Of or pertaining to the Amorphozoa. [ 1913 Webster ]

a. Of or pertaining to the Anthozoa. [ 1913 Webster ]

a. [ Gr. 'archai^os ancient + zw^, on animal. ] (Zool.) Like or belonging to the earliest forms of animal life. [ 1913 Webster ]

2. (Geol.) formed in or belonging to the earlier of two divisions of the Precambrian era. archaeozoic life forms
Syn. -- archeozoic [ WordNet 1.5 ]

n. [ Gr. 'archai^os ancient + zw^, on animal. ] the time from 1.5 billion to 5 billion years ago; the time when the earth's crust formed; a time when only unicellular organisms and the earliest forms of life are present.
Syn. -- Archeozoic, Archeozoic era, Archaeozoic era [ WordNet 1.5 ]

n. 1. 1 the time from 1.5 billion to 5 billion years ago, when the earth's crust was formed; the time when only unicellular organisms and the earliest forms of life are present. Same as Archaeozoic.
Syn. -- Archaeozoic, Archeozoic era, Archaeozoic era [ WordNet 1.5 ]

adj. 1. 1 (Geol.) same as archaeozoic.
Syn. -- archaeozoic [ WordNet 1.5 ]

a. [ Gr. 'a`rqron joint + &unr_; animal, fr. &unr_; an animal. ] (Zool.) Of or pertaining to the Articulata; articulate. [ 1913 Webster ]

a. [ Gr. 'a priv. + &unr_; life, from &unr_; to live. ] Destitute of any vestige of organic life, or at least of animal life; anterior to the existence of animal life; formed when there was no animal life on the globe; as, the azoic. rocks. [ 1913 Webster ]

Azoic age (Geol.), the age preceding the existence of animal life, or anterior to the paleozoic tome. Azoic is also used as a noun, age being understood. See Archæan, and Eozoic. [ 1913 Webster ]

a. [ Cf. F. benzoïque. ] Pertaining to, or obtained from, benzoin. [ 1913 Webster ]

Benzoic acid, or flowers of benzoin, a peculiar vegetable acid, C6H5.CO2H, obtained from benzoin, and some other balsams, by sublimation or decoction. It is also found in the urine of infants and herbivorous animals. It crystallizes in the form of white, satiny flakes; its odor is aromatic; its taste is pungent, and somewhat acidulous. --
Benzoic aldehyde, oil of bitter almonds; the aldehyde, C6H5.CHO, intermediate in composition between benzoic or benzyl alcohol, and benzoic acid. It is a thin colorless liquid. [ 1913 Webster ]

a. (Geol.) See Cenozoic. [ 1913 Webster ]

a. (Geol.) See Cenozic. [ 1913 Webster ]

a. [ Gr. &unr_; recent + &unr_; life. ] (Geol.) Belonging to the most recent division of geological time, including the tertiary, or Age of mammals, and the Quaternary, or Age of man. [ Written also cænozoic, cainozoic, kainozoic. ] See Geology. [ 1913 Webster ]

☞ This word is used by many authors as synonymous with Tertiary, the Quaternary Age not being included. [ 1913 Webster ]

a. (Zoöl.) See Epizoic. [ 1913 Webster ]

adj. Living within a living animal, usually as a parasite; as, endozoic worms. Contrasted with epizoic.
Syn. -- entozoic, entozoan. [ WordNet 1.5 ]

{ } a. (Zoöl.) Pertaining to, or consisting of, the Entozoa. [ 1913 Webster ]

a. [ See Eozoön. ] (Geol.) Of or pertaining to rocks or strata older than the Paleozoic, in many of which the eozoön has been found. [ 1913 Webster ]

☞ This term has been proposed for the strata formerly called Azoic, and is preferred especially by those geologists who regard the eozoön as of organic origin. See Archæan. [ 1913 Webster ]

a. (Zoöl.) Living upon the exterior of another animal; ectozoic; -- said of external parasites. [ 1913 Webster ]

a. [ Gr. &unr_; like + &unr_; life. ] (Zool.) Pertaining to, or including, similar forms or kinds of life; as, homœozoic belts on the earth's surface. E. Forbes. [ 1913 Webster ]

a. Of or pertaining to hylozoism. [ 1913 Webster ]

a. [ Pref. hypo- + Gr. zw^, on an animal. ] (Geol.) Anterior in age to the lowest rocks which contain organic remains. Lyell. [ 1913 Webster ]

a. See Cenozoic. [ 1913 Webster ]

a. (Zool.) Of or pertaining to the Malacozoa. [ 1913 Webster ]

n. The Mesozoic age or formation. [ 1913 Webster ]

a. [ Meso- + Gr. &unr_; life, fr. &unr_; to live. ] (Geol.) Belonging, or relating, to the secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Chart of Geology. [ 1913 Webster ]

a. (Zool.) Of or pertaining to the Metazoa. [ 1913 Webster ]

a. [ Neo- + Gr. &unr_; life. ] (Geol.) More recent than the Paleozoic, -- that is, including the Mesozoic and Cenozoic. [ 1913 Webster ]

a. [ Oxy- (b) + benzoic. ] (Chem.) Hydroxybenzoic; pertaining to, or designating, any one of several hydroxyl derivatives of benzonic acid, of which the commonest is salicylic acid. [ 1913 Webster ]

a. [ Paleo- + Gr. zwh` life, fr. zh^n to live. ] (Geol.) Of or pertaining to, or designating, the older division of geological time during which life is known to have existed, including the Silurian, Devonian, and Carboniferous ages, and also to the life or rocks of those ages. See Chart of Geology. [ 1913 Webster ]

n. (Geol.) The Paleozoic time or strata. [ 1913 Webster ]

a. 1. (Zool.) Of or pertaining to the Protozoa. [ 1913 Webster ]

2. (Geol.) Containing remains of the earliest discovered life of the globe, which included mollusks, radiates and protozoans. [ 1913 Webster ]

a. [ Psycho- + Gr. &unr_; life. ] (Geol.) Designating, or applied to the Era of man; as, the psychozoic era. [ 1913 Webster ]

a. (Zool.) Having tissued composed of cells. [ 1913 Webster ]

a. [ Gr. &unr_;. ] (Zool.) Of or pertaining to animals, or animal life. [ 1913 Webster ]