| 释义 |
trimerous, a.|ˈtrɪmərəs, ˈtraɪ-|
[f. mod.L. trimer-us (ad. Gr. τριµερής, f. τρι- tri- + µέρος part) + -ous.]
Having, consisting of, or characterized by three parts: spec. a. Bot. Having the parts of the flower, or the leaves, in series or whorls of three. b. Entom. Consisting of three segments or joints, as the tarsi in certain insects (see trimeran below); of an insect, having such tarsi (= trimeran).
1826Kirby & Sp. Entomol. III. xxxv. 685 Trimerous insects are those whose tarsi consist of only three joints. Ibid. IV. xlvii. 378 Tarsi mostly trimerous, rarely dimerous. 1845Lindley Sch. Bot. viii. (1858) 129 note, Trimerous means that they [parts of a flower] are a power of 3. 1857Henfrey Bot. 226 Schizandraceæ..calyx and corolla 3-merous. 1869Student II. 12 Polymerous leaves may be dimerous, trimerous, etc. according to their number of meriphylls. 1875Bennett & Dyer Sachs' Bot. 570 Among the dimerous and trimerous flowers of the orders Polycarpæ and Crucifloræ.
So trimeran |ˈtrɪmərən| Entom., adj. belonging to the division Trimera of beetles, or of hymenopterous insects, characterized by trimerous tarsi; n. an insect of either of these divisions; trimere |ˈtraɪmɪə(r)| Zool., a division of the third order in the supporting reticular skeleton of extinct siliceous sponges; trimerite |ˈtrɪməraɪt| Min., a rare silicate of glucinum, manganese, and calcium, occurring in pinkish pseudo-hexagonal crystals, shown by their optical properties to be combinations of three triclinic individuals (Cent. Dict. 1891).
1842Brande Dict. Sci., etc., *Trimerans, Trimera,..the name of a section of Coleopterous insects, including those which have each tarsus composed of three articulations.
1909Cent. Dict. Suppl., *Trimere.
1896Chester Dict. Names Min. 274 *Trimerite, Silicate of glucinum, manganese, and calcium, found in brilliant pinkish crystals. |