8 letters · 15 points in Scrabble
noun scalelike structure between the base of the wing and the halter of a two-winged fly
originFrom New Latin calyptra, from Ancient Greek κᾰλύπτρα (kălúptra, “hood”), from κᾰλύπτω (kălúptō, “I cover”).
Etymology from Wiktionary, CC BY-SA 3.0