/ Dictionary / Index A apportionment: Meaning and Definition of Find definitions for: ap•por•tion•ment Pronunciation: (u-pôr'shun-munt, u-pōr'-), [key] — n. the act of apportioning. the determination of the number of members of the U.S. House of Representatives according to the proportion of the population of each state to the total population of the U.S. the apportioning of members of any other legislative body. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: apportionment (Thesaurus) apportion appose Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language