What is prominent, or excessively prominent; bulging beyond the surrounding or adjacent surface; swelling; as, a protuberant joint; a protuberant eye. -- Pro*tu"ber*ant*ly, adv called?

protuberant — Prominent, or excessively prominent; bulging beyond the surrounding or adjacent surface; swelling; as, a protuberant joint; a protuberant eye. -- Pro*tu"ber*ant*ly, adv. (Webster's 1913.)

Sources