12 letters · 18 points in Scrabble
noun something that bulges out or is protuberant or projects from its surroundings
noun the condition of being protuberant; the condition of bulging out
originFrom French protubérance, from Latin prōtubērantia (“bulge; protuberance”), from prō + tūber (“swelling; protuberance”) + -antia (“-ance”).
Etymology from Wiktionary, CC BY-SA 3.0