[医] 发状微晶(岩); 针形微晶(淀粉粒的); 硅质骨针(海绵动物的)

Trichite \Trich"ite\, n. [Gr. ?, ?, hair.]
1. (Min.) A kind of crystallite resembling a bunch of hairs,
common in obsidian. See Illust. of {Crystallite}.

2. (Zo["o]l.) A delicate, hairlike siliceous spicule, found
in certain sponges.

{Trichite sheaf} (Zo["o]l.), one of the small sheaflike
fascicles of slender set[ae] characteristic of certain
sponges. See Illust. under {Spicule}.