| 单词 |
phragma |
| 释义 |
‖ phragma Nat. Hist.|ˈfrægmə|
Pl. -ata. Rarely anglicized as phragm.
[mod.L., a. Gr. ϕράγµα, -µατ- fence; in mod.F. phragme (Littré).]
A partition, septum: spec. a. Entom. A transverse partition separating the prothorax from the mesothorax, found in some insects, as the Mole-cricket.
1826Kirby & Sp. Entomol. III. xxxiii 368 Phragma (the Phragm). The Septum that closes the posterior orifice of the Prothorax in Gryllotalpa. Ibid. xxxv. 582 The phragm, or septum of the prothorax is most conspicuous in the mole-cricket (Gryllotalpa), in which it is a hairy ligament attached to the inside of the upper and lateral margins of the base of that part: inclining inwards, it forms the cavity which receives the mesothorax.
b. Bot. See quot. 1866.
1830Lindley Nat. Syst. Bot. 136 Tribulus has the fruit separating into spiny nuts, with transverse phragmata. 1863J. H. Balfour Man. Bot. §447. 1866 Treas. Bot., Phragma, a spurious dissepiment in fruits, i.e. one which is not formed by the sides of carpels; a partition, of whatever kind.
Hence phragˈmatic a. (see quot.).
1858Mayne Expos. Lex., Phragmaticus,..applied to cattle, etc., which suffer from colic or obstruction of the bowels: phragmatic. |
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