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Definition of Oolith
1. Noun. (geology) 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. ¹
2. Noun. (rare) Oolite. ¹
¹ Source: wiktionary.com
Definition of Oolith
1. oolite [n -S] - See also: oolite