from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A spherical granule of which oolite is composed, formed by concentric accretion of thin layers of a mineral around a core. Calcium carbonate (limestone) is the most common mineral that forms ooliths, but they may also form from other minerals such as dolomite and silica.
- n. Oolite.
From Latin oolithus, from Ancient Greek ᾠο- ("oo-") + λίθος (lithos, "stone"), corresponding to oo- + -lith (Wiktionary)