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Dictionary

bi•o•strome

Pronunciation: (bī'u-strōm"), [key]
—n. Geol.
a bedded, blanketlike sedimentary deposit of organic origin built by marine organisms and including shell beds, flat reefs, and corals.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

biostratigraphy

biosynthesis

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