12 letters · 23 points in Scrabble
noun a colorless crystalline alkaloid derived from tea leaves or made synthetically; used in medicine as a bronchial dilator
originEtymology tree Translingual Thea Ancient Greek φύλλον (phúllon) Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ine English theophylline From Translingual Thea (“former genus name for the tea plant”) + Ancient Greek φύλλον (phúllon, “leaf”) + English -ine.
Etymology from Wiktionary, CC BY-SA 3.0