‖n. [ NL., fr. Gr. &unr_;. ] (Rhet.) An antithesis in which the members are repeated in inverse order. [ 1913 Webster ]

prop. n. A subclass of pouched animals.
Syn. -- subclass Metatheria. [ WordNet 1.5 ]

n. Any of a group of primitive pouched mammals found mainly in Australia and the Americas. [ WordNet 1.5 ]

n.; pl. Metatheses [ L., fr. Gr. meta`qesis, fr. metatiqe`nai to place differently, to transpose; meta` beyond, over + tiqe`nai to place, set. See Thesis. ] 1. (Gram.) Transposition, as of the letters or syllables of a word; as, pistris for pristis; meagre for meager. [ 1913 Webster ]

2. (Med.) A mere change in place of a morbid substance, without removal from the body. [ 1913 Webster ]

3. (Chem.) The act, process, or result of exchange, substitution, or replacement of atoms and radicals; thus, by metathesis an acid gives up all or part of its hydrogen, takes on an equivalent amount of a metal or base, and forms a salt. [ 1913 Webster ]

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

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

n. [ NL.: cf. F. métathorax. See Meta-, and Thorax. ] (Zool.) The last or posterior segment of the thorax in insects. See Illust. of Coleoptera. [ 1913 Webster ]

a. [ Penta- + thionic. ] (Chem.) Pertaining to, or designating, an acid of sulphur obtained by leading hydrogen sulphide into a solution of sulphur dioxide; -- so called because it contains five atoms of sulphur. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_;; &unr_; five + &unr_; a contest. ] (Gr. Antiq.) 1. A fivefold athletic performance peculiar to the great national games of the Greeks, including leaping, foot racing, wrestling, throwing the discus, and throwing the spear. [ 1913 Webster ]

2. In the modern Olympic Games, a composite contest made up of a running broad jump, throwing the javelin, a 200-meter run, throwing the discus, and a 1500-meter run. [ Webster 1913 Suppl. ]

n. [ Gr. sta`qmh a measuring line + -graph. ] A contrivance for recording the speed of a railway train. Knight. [ 1913 Webster ]

obs. 3d pers. sing. pres. of Ta, to take. [ 1913 Webster ]

n. [ Prov. E.; of Scand. origin; cf. Icel. tað dung, taða the grass of a manured pasture, teðja to manure. √58. Cf. Ted. ] 1. Dung, or droppings of cattle. [ Prov. Eng. & Scot. ] [ 1913 Webster ]

2. The luxuriant grass growing about the droppings of cattle in a pasture. [ Prov. Eng. & Scot. ] [ 1913 Webster ]

v. t. To manure (land) by pasturing cattle on it, or causing them to lie upon it. [ Prov. Eng. & Scot. ] [ 1913 Webster ]

‖n. [ NL., fr. Uinta, the Indian name of the region where the animals were discovered + Gr. qhri`on beast. ] (Paleon.) An extinct genus of large Eocene ungulates allied to Dinoceras. This name is sometimes used for nearly all the known species of the group. See Dinoceras. [ 1913 Webster ]

n. [ Water + tath, n. ] A kind of coarse grass growing in wet grounds, and supposed to be injurious to sheep. [ Prov. Eng. ] [ 1913 Webster ]