[ ee-kwawr-in, ee-kwor- ]
/ iˈkwɔr ɪn, iˈkwɒr- /

noun Biochemistry, Histology.

a protein, secreted by certain jellyfish, that produces a blue light upon binding with calcium.

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