biostrome

[ bahy-uh-strohm ]
/ ˈbaɪ əˌstroʊm /

noun Geology.

a bedded, blanketlike sedimentary deposit of organic origin built by marine organisms and including shell beds, flat reefs, and corals.

Origin of biostrome

1930–35; bio- + Greek strôma layer, bed; see stroma

Related forms

bi·o·stro·mal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for biostrome

biostrome

/ (ˈbaɪəˌstrəʊm) /

noun

a rock layer consisting of a deposit of organic material, such as fossils

Word Origin for biostrome

C20: from bio- + Greek strōma covering
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012