‖n. (Zool.) One of the Actinozoa. [ 1913 Webster ]

{ } n. [ Gr. &unr_; flowery + &unr_; animal + -oid. See Zooid. ] (Bot.) One of the mobile male reproductive bodies in the antheridia of cryptogams. [ 1913 Webster ]

n. [ Ascidium + zooid. ] (Zool.) One of the individual members of a compound ascidian. See Ascidioidea. [ 1913 Webster ]

n. pl. [ F. caleçons (cf. It. calzoni breeches), fr. L. calceus shoe. ] Drawers. [ Obs. ] [ 1913 Webster ]

n. [ Gr. da`ktylos finger + E. zooid. ] (Zool.) A kind of zooid of Siphonophora which has an elongated or even vermiform body, with one tentacle, but no mouth. See Siphonophora. [ 1913 Webster ]

n. [ Gr. &unr_; second + E. zooid. ] (Zool.) One of the secondary, and usually sexual, zooids produced by budding or fission from the primary zooids, in animals having alternate generations. In the tapeworms, the joints are deuterozooids. [ 1913 Webster ]

n. [ Gr. &unr_; of double from + E. zooid. ] (Zool.) One of the free-swimming sexual zooids of Siphonophora. [ 1913 Webster ]

‖n.; pl. Ectozoa [ NL., fr. Gr. 'ekto`s outside outside + zw^, on an animal. ] (Zoöl.) See Epizoön. [ 1913 Webster ]

n. [ Entozoön + -logy + -ist. ] One versed in the science of the Entozoa. [ 1913 Webster ]

‖n.; pl. Entozoa [ NL. See Entozoa. ] (Zoöl.) One of the Entozoa. [ 1913 Webster ]

a. [ Gr. 'en in + zw^, on an animal: cf. F. enzoötique. ] Afflicting animals; -- used of a disease affecting the animals of a district. It corresponds to an endemic disease among men. [ 1913 Webster ]

‖n.; pl. Eozoöns L. Eozoa [ NL., fr. Gr. 'hw`s dawn + zw^, on an animal. ] (Paleon.) A peculiar structure found in the Archæan limestones of Canada and other regions. By some geologists it is believed to be a species of gigantic Foraminifera, but others consider it a concretion, without organic structure. [ 1913 Webster ]

a. (Paleon.) Pertaining to the eozoön; containing eozoöns; as, eozoönal limestone. [ 1913 Webster ]

‖n.; pl. Epizoa [ NL., fr. Gr. 'epi` upon + zw^, on animal. ] (Zoöl.) One of the artificial group of invertebrates of various kinds, which live parasitically upon the exterior of other animals; an ectozoön. Among them are the lice, ticks, many acari, the lerneans, or fish lice, and other crustaceans. [ 1913 Webster ]

a. [ Cf. F. épizoötique. ] 1. (Zoöl.) Of or pertaining to an epizoön. [ 1913 Webster ]

2. (Geol.) Containing fossil remains; -- said of rocks, formations, mountains, and the like. [ Obs. ] [ 1913 Webster ]

Epizoötic mountains are of secondary formation. Kirwan. [ 1913 Webster ]

3. Of the nature of a disease which attacks many animals at the same time; -- corresponding to epidemic diseases among men. [ 1913 Webster ]

{ , n. [ F. épizoötie. ] 1. A contagious disease which attacks many animals at the same time; an epizootic disease; an epidemic among animals. [ 1913 Webster ]

2. A murrain; an epidemic influenza among horses. [ 1913 Webster ]

n. [ Gr. &unr_; offspring + E. zooid. ] (Zool.) A sexual zooid, or medusoid bud of a hydroid; a gonophore. See Hydroidea, and Illust. of Campanularian. [ 1913 Webster ]

‖n.; pl. Haematozoa [ NL., fr. Gr. a"i^ma, a"i`matos, blood + zw^, on animal. ] (Zool.) A parasite inhabiting the blood; esp.: (a) Certain species of nematodes of the genus Filaria, sometimes found in the blood of man, the horse, the dog, etc. (b) The trematode, Bilharzia haematobia, which infests the inhabitants of Egypt and other parts of Africa, often causing death. [ 1913 Webster ]

‖n.; pl. L. Hydrozoa E. Hydrozoöns [ NL. ] (Zool.) One of the Hydrozoa. [ 1913 Webster ]

n. [ Etymol. uncertain. ] A kind of toy or rude musical instrument, as a tube inside of which is a stretched string or membrane made to vibrate by singing or humming into the tube. [ Webster 1913 Suppl. ]

n. [ Macro- + zoospore. ] (Bot.) A large motile spore having four vibratile cilia; -- found in certain green algae. [ 1913 Webster ]

‖n. [ NL. ] (Zool.) One of the Metazoa. [ 1913 Webster ]

n. The study of fossil animals.
Syn. -- paleozoology. [ WordNet 1.5 ]

n. [ Paleo- + Zoology. ] The science of extinct animals, a branch of paleontology. [ 1913 Webster ]

‖n.; pl. Phytozoa [ NL., fr. Gr. fyto`n + zw^, on an animal. ] (Zool.) A plantlike animal. The term is sometimes applied to zoophytes. [ 1913 Webster ]

‖n.; pl. Polyzoa [ NL. See Polyzoan. ] (Zool.) One of the individual zooids forming the compound organism of a polyzoan. [ 1913 Webster ]

‖n.; pl. Protozoa [ NL. ] (Zool.) (a) One of the Protozoa. (b) A single zooid of a compound protozoan. [ 1913 Webster ]

n. (Zool.) One of the primary, or first-formed, segments of an embryonic arthropod. [ 1913 Webster ]

pos>n. (Biol.) A spermatozoid. [ 1913 Webster ]

‖n.; pl. Spermatozoa [ NL., fr. Gr. &unr_;&unr_;&unr_;, sperm + zw^, on an animal. ] (Biol.) Same as Spermatozoid. [ 1913 Webster ]

n. [ Spiral + zooid. So called because they often have a spiral form when contracted. ] (Zool.) One of the special defensive zooids of certain hydroids. They have the form of long, slender tentacles, and bear lasso cells. [ 1913 Webster ]

n. (Zool.) A metazoan. [ 1913 Webster ]

n. The ringdove. [ Prov. Eng. ] [ 1913 Webster ]

n. [ Gr. &unr_; third + zw^, on an animal. ] (Zool.) A zooid of the third generation in asexual reproduction. [ 1913 Webster ]

(U. S. Hist.) The grant by the State of Georgia, by Act of Jan. 7, 1795, of 35, 000, 000 acres of her western territory, for $500, 000, to four companies known as the
Yazoo Companies from the region granted ; -- commonly so called, the act being known as the
Yazoo Frauds Act, because of alleged corruption of the legislature, every member but one being a shareholder in one or more of the companies. The act granting the land was repealed in 1796 by a new legislature, and the repealing provision was incorporated in the State constitution in 1798. In 1802 the territory was ceded to the United States. The claims of the purchasers, whom Georgia had refused to compensate, were sustained by the United States Supreme Court, which (1810) declared the repealing act of 1796 unconstitutional. Congress in 1814 ordered the lands sold and appropriated $5, 000, 000 to pay the claims. [ Webster 1913 Suppl. ]

A combining form from Gr. zww^, n an animal, as in zoogenic, zoology, etc. [ 1913 Webster ]

a. Pertaining to zoochemistry. [ 1913 Webster ]

n. [ Zoo- + chemistry. ] Animal chemistry; particularly, the description of the chemical compounds entering into the composition of the animal body, in distinction from biochemistry. [ 1913 Webster ]

n. [ Zoo- + Gr. &unr_; alchemy. ] Animal chemistry; zoochemistry. Dunglison. [ 1913 Webster ]

‖n. [ NL., dim. from Gr. zw^, on an animal + &unr_; green. ] (Zool.) One of the small green granulelike bodies found in the interior of certain stentors, hydras, and other invertebrates. [ 1913 Webster ]

n. [ Zoo- + cyst. ] (Biol.) A cyst formed by certain Protozoa and unicellular plants which the contents divide into a large number of granules, each of which becomes a germ. [ 1913 Webster ]

‖n.; pl. Zoocytia [ NL., fr. Gr. zw^, on an animal + &unr_; a hollow vessel. ] (Zool.) The common support, often branched, of certain species of social Infusoria. [ 1913 Webster ]

‖n.; pl. Zoodendria [ NL., fr. Gr. zw^, on an animal + &unr_; a tree. ] (Zool.) The branched, and often treelike, support of the colonies of certain Infusoria. [ 1913 Webster ]

‖n.; pl. Zooecia [ NL., fr. Gr. zw^, on an animal + &unr_; house. ] (Zool.) One of the cells or tubes which inclose the feeling zooids of Bryozoa. See Illust. of Sea Moss. [ 1913 Webster ]

n. [ Zoo- + Gr. &unr_; red. ] (Zool.) A peculiar organic red coloring matter found in the feathers of various birds. [ 1913 Webster ]

a. [ Zoo- + Gr. &unr_; marriage. ] (Biol.) Of or pertaining zoogamy. [ 1913 Webster ]

n. (Biol.) The sexual reproduction of animals. [ 1913 Webster ]

a. [ Zoo- + -gen + -ic: cf. Gr. &unr_; born of an animal. ] (Biol.) Of or pertaining to zoogeny, animal production. [ 1913 Webster ]

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

n. [ Zoo- + geography. ] The study or description of the geographical distribution of animals. [ 1913 Webster ]