/ Dictionary / Index E entire function: Meaning and Definition of Find definitions for: entire' func"tion Pronunciation: [key] — Math. Math. a function of a complex variable that has a derivative for all finite values of the variable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. en tire-bouchon entirely Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language