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definitions

oolith

[ oh-uh-lith ]
/ ˈoʊ ə lɪθ /

noun Geology.

any of the component concretions of a piece of oolite.

Nearby words

  1. ookinete,
  2. ookpik,
  3. oolachan,
  4. oolemma,
  5. oolite,
  6. oolitic,
  7. oological,
  8. oology,
  9. oolong,
  10. oom

Origin of oolith

First recorded in 1780–90; oo- + -lith
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for oolith

oolith

/ (ˈəʊəˌlɪθ) /

noun

any of the tiny spherical grains of sedimentary rock of which oolite is composed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for oolith

oolith

[ ō′ə-līt′ ]

A small, round grain consisting of calcium carbonate, silica, or dolomite. Ooliths have concentric layers that form around a nucleus, such as a shell fragment, a sand grain, or a pellet of alga. They typically have diameters of 0.25 to 2 mm. Ooliths usually form by inorganic precipitation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.