[uh-pawr-shuh n-muh nt, uh-pohr-]


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.

Nearby words

  1. appointor,
  2. appomattox,
  3. appomattox court house,
  4. apport,
  5. apportion,
  6. apposable,
  7. appose,
  8. apposite,
  9. appositely,
  10. apposition

Origin of apportionment

First recorded in 1620–30; apportion + -ment

Related formsnon·ap·por·tion·ment, nounpro·ap·por·tion·ment, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for apportionment

British Dictionary definitions for apportionment



the act of apportioning
US government the proportional distribution of the seats in a legislative body, esp the House of Representatives, on the basis of population
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for apportionment



1620s, from apportion + -ment. Perhaps influenced by French apportionnement.

Online Etymology Dictionary, © 2010 Douglas Harper

Culture definitions for apportionment


The allocation of seats in a legislature or of taxes according to a plan. In the United States Congress, for example, the apportionment of seats in the House of Representatives is based on the relative population of each state, whereas the apportionment in the Senate is based on equal representation for every state. (See also gerrymander.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.