thelium/ˈθi.lɪ.əm/EtymologyFrom New Latin, from Ancient Greek θηλή (thēlḗ, “nipple”). By surface analysis, thel- + -ium.thelium means A nipple or papilla. Lexicurio rates it Sui generis — a strength score of 89 out of 100.nounA nipple or papilla.