/ Dictionary / Index I inquiline: Meaning and Definition of Find definitions for: in•qui•line Pronunciation: (in'kwu-līn", -lin), [key] — n. an animal living in the nest, burrow, or body of another animal. —adj. of the nature of an inquiline. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. inquietude inquire Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language