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单词 hastate
释义 hastate, a.|ˈhæsteɪt|
[ad. L. hastātus, f. hasta spear: see -ate2 2.]
1. Formed like a spear or spear-head; spear-shaped.
1854Woodward Mollusca (1856) 117 Lingual teeth..elongate, subulate, or hastate.1856–8W. Clark Van der Hoeven's Zool. I. 667 Astacus..Lamellar appendage, dentiform or hastate.1874Coues Birds N. W. 665 Crescentic or hastate spots.1885Castle Sch. Fencing 44 The hastate weapons: pike, partisan..and poleaxe.
b. Bot. Of leaves: Narrowly triangular nearly to the base, where two lateral lobes project at right angles to the midrib.
1788J. Lee Introd. Bot. iii. v. (ed. 4) 191 Hastate, Javelin-shaped; when they are triangular, the Base and Sides hollowed, and the Angles spreading.1794Martyn Rousseau's Bot. xxvii. 427 Hastate leaves that are quite entire.1870Hooker Stud. Flora 313 Rumex acetosella; diœcious, lower leaves hastate.1880Gray Struct. Bot. iii. §4.96 Leaves..Hastate or Halberd-shaped.
2. Comb., as hastate-auricled, hastate-leaved.
1864Sowerby's Bot. I. 187 Hastate-leaved Scurvy-grass.1883Bentley Bot. 159 When the lobes of such a leaf are separated from the blade..it is auriculate or hastate-auricled.
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更新时间:2024/12/22 19:44:42