frustule

frus.tule

n.（名词）
The hard, siliceous bivalve shell of a diatom.
硅藻细胞壳：硅藻的坚硬含硅的硬壳

来源：
French
法语
from Latin frustulum [diminutive of] frustum [piece broken off]
源自 拉丁语 frustulum [] frustum的小后缀 [碎片]