Find the word definition

Wiktionary
tautomycin

n. (context organic compound English) A chemical found naturally in shellfish, produced by the bacterium ''Streptomyces spiroverticillatus''.

Wikipedia
Tautomycin

Tautomycin is a chemical that occurs naturally in shellfish and is produced by the bacterium Streptomyces spiroverticillatus. It is a polyketide-based structure characterized by a three hydroxyl groups, two ketones, a dialkylmaleic anhydride, an ester linkage (connecting anhydride unit to polyketide chain), a spiroketal and one methyl ether among others.