| 释义 |
eschar Path.|ˈɛskɑː(r)|
Forms: 6–7 asker, (6 ascher, askar), 6–8 escar(e, 6 eschare, eskarre, 7 escarre, (esker), 7– eschar.
[ad. (partly through Fr. eschare) L. eschara, a. Gr. ἐσχάρα lit. ‘hearth’, hence mark of a burn. The Fr. word was at an earlier period adopted aphetically as scarre, scar1.]
‘A brown or black dry slough, resulting from the destruction of a living part, either by gangrene, by burn, or by caustics’ (Syd. Soc. Lex.).
[c1430tr. Gul. de Saliceto in MS. Sloane 277 fo. 49 Þe remeuynge of þe escara or cruste.] 1543Traheron Vigo's Chirurg. ii. ix. 23 After that the malignite is taken awaye, ye muste cause the eschare to fal awaye. 1582J. Hester Secr. Phiorav. i. vii. 8 You maie not take awaie y⊇ Askar, vntill such tyme as it falleth out of hymself. 1607Topsell Four-f. Beasts (1673) 313 Bind it thereto for three days, in which space you shall see a white asker on the sore. 1655Culpepper, etc., Riverius iv. vii. 119 When the Eschar falls off, they will bleed again. c1720W. Gibson Farrier's Guide ii. xlviii. (1738) 182 It does not form anything like an Escar. 1755Phil. Trans. XLIX. 50 The tongue alone was the seat of the gangrenous eschar. 1807Med. Jrnl. XVII. 223, I cauterized the wound by means of burning tinder..until an eschar was produced about the size of a shilling. 1874H. Rogers Orig. Bible 286 In the eschar produced by cautery no nerve thrills.
†b. transf. Obs.
1709Phil. Trans. XXVI. 379 The Flame of common Fire..is able to reduce it [Iron] to an Eschar or sort of Rust. 1727Bradley Fam. Dict. s.v. Ant, Insects..cause so many Escars, that the Leaves cannot avoid circling. |