aequorin

noun

ae·​quo·​rin

ēˈkwȯrə̇n,

-ōr-

plural -s

: a bioluminescent protein of jellyfish (genus Aequorea) that emits light in response to the addition of calcium or strontium and is used to demonstrate the presence and distribution of calcium in cells

Word History

Etymology

New Latin Aequorea aequorea + -in entry 1

First Known Use

1962, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now