# biostrome

> English word · Noun

## Definitions
1. A horizontally bedded stratum of fossilized remains of sedentary organisms

## Etymology
bio- (“life”) + Latin stroma (“coverlet”), from Ancient Greek στρῶμα (strôma, “bed, mattress”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/biostrome