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aequorin

[ee-kwawr-in, ee-kwor-]
noun Biochemistry, Histology.
  1. a protein, secreted by certain jellyfish, that produces a blue light upon binding with calcium.
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Origin of aequorin

1965–70; < New Latin Aequor(ea) a genus of jellyfish that produces such a protein (Latin: feminine of aequoreus of the sea, equivalent to aequor level surface, the sea + -eus -eous) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018