Definition of "protuberancy" [pro•tu•ber•an•cy]

• Protuberance. (noun)
• Something that is protuberant. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "He was of that easy sort of feather-bed corpulency of form that betokens good-nature, and had none of that smooth, red, well-filled protuberancy, which indicates a choleric humour and a testy temper."
• "Besides, it is held by naturalists that if there be a protuberancy of parts in the superior region of the body, as in the ears and nose, there must be a parity also in the inferior; and therefore in that truly pious age the males in every assembly, according as they were gifted, appeared very forward in exposing their ears to view, and the regions about them; because"