/ Dictionary / Index C crossbill: Meaning and Definition of Find definitions for: cross•bill Pronunciation: (krôs'bil", kros'-), [key] — n. any bird belonging to the genus Loxia, of the finch family, characterized by mandibles curved so that the tips cross each other when the bill is closed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: crossbill (Thesaurus) cross-bedded crossbirth Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language