Frustule

(definition) by Webster 1913 Tue Dec 21 1999 at 23:47:42

Frus"tule (?), n. [L. frustulum, dim. fr. frustum a piece: cf. F. frustule.] Bot.

The siliceous shell of a diatom. It is composed of two valves, one overlapping the other, like a pill box and its cover.

 

© Webster 1913.

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