coccolith

[kok-uh-lith]

noun

a microscopic calcareous disk or ring making up part of the covering of certain marine plankton and forming much of the content of chalk rocks.

Nearby words

  1. cocciferous,
  2. cocco-,
  3. coccobacillary,
  4. coccobacillus,
  5. coccoid,
  6. coccus,
  7. coccyalgia,
  8. coccydynia,
  9. coccygeal,
  10. coccygeal body

Origin of coccolith

1865–70; < New Latin Coccolithus originally a genus name; see coccus, -o-, -lith

Related formscoc·co·lith·ic, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for coccolith

coccolith

noun

any of the round calcareous plates in chalk formations: formed the outer layer of unicellular plankton

Word Origin for coccolith

C19: New Latin, from Greek kokkos berry + lithos stone

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