from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A small round calcareous grain found, for example, in limestones.
- n. Rock, usually limestone, composed of oolites.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A rock consisting of spherical grains within a mineral cortex accreted around a nucleus, often of quartz grains.
- n. An ooid or oolith.
From oo- + -lite, after German Oolit. (Wiktionary)