Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A stratified rock deposit, such as coal or carbonate, formed from the remains of sedentary organisms such as trees or corals, crinoids, and brachiopods.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology A horizontally bedded
stratum offossilized remains ofsedentary organisms
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[bio— + Greek strōma, bed, mattress; see ster- in Indo-European roots.]
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Examples
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