10 letters · 19 points in Scrabble
noun antibiotic (trade name Lincocin) obtained from a streptomyces bacterium and used in the treatment of certain penicillin-resistant infections
originFrom translingual (Streptomyces) linco(lnensis) + -mycin (“antibiotic derived from a Streptomyces strain”).
Etymology from Wiktionary, CC BY-SA 3.0