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placoid

美['plækɔɪd],英['plækɔɪd],

释义

adj. 【动】板状的;有盾状鳞的; n. 有盾鳞的鱼; 网络释义: 盾鳞状的;

例句

Enamel a shiny hard material covering the dentine of teeth and the surface of some scales ( cosmoid and placoid scales).
珐琅有光泽的坚硬物质包覆在牙齿及一些鳞片(圆鳞与盾鳞)表面。这是脊椎动物所产生最坚硬的物质。
Dentine a hard mesodermal material in teeth and some scales (cosmoid, ganoid and placoid scales) produced by odontobasts.
齿质组成牙齿或某些鳞片(硬鳞与盾鳞)中层的坚硬物质。

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