Coccolithophore

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any of many minute mostly marine planktonic biflagellated organisms with brown chromatophores and complex calcareous, less commonly siliceous, shells.

    "Chalk formations such as the white cliffs of Dover are largely composed of the bodies of countless billions of coccolithophores that bloomed, died and then sank to the seabed each season for millions of years."

Example

More examples

"Chalk formations such as the white cliffs of Dover are largely composed of the bodies of countless billions of coccolithophores that bloomed, died and then sank to the seabed each season for millions of years."

Etymology

From Ancient Greek κόκκος (kókkos, “grain, seed”) + λίθος (líthos, “stone”) + φόρος (phóros, “carry”); this compound references how the phytoplanktonic organism's life cycle results in the depositing of its microscopic seed-like calcic exoskeleton, forming calcite.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.