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De - Pt| English Dictionary: frustule | by the DICT Development Group |
| 1 result for frustule | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Frustule \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. | |
