9 letters · 17 points in Scrabble
noun a drug that causes the pupil of the eye to dilate; used to aid eye examinations
originEtymology tree English mydriasis Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English mydriatic From mydriasis + -ic.
Etymology from Wiktionary, CC BY-SA 3.0