| 单词 | biostrome |
| 释义 | biostrome —biostromal, adj. /buy"euh strohm'/, n. Geol. a bedded, blanketlike sedimentary deposit of organic origin built by marine organisms and including shell beds, flat reefs, and corals. [1930-35; BIO- + Gk strôma layer, bed; see STROMA] |
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