astacin

noun

as·​ta·​cin

ˈastəsə̇n

variants or less commonly astacene

-ˌsēn

plural -s

: a red carotenoid ketone pigment C₄₀H₄₈O₄ found especially in crustaceans (as in boiled lobster shell) and obtained by oxidation of astaxanthin

Word History

Etymology

International Scientific Vocabulary astac- (from New Latin Astacus) + -in or -ene

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