Iowa (approved especially for use with zip code).

Definition for ia (2 of 4)

Definition for ia (3 of 4)


a noun suffix having restricted application in various fields, as in names of diseases (malaria; anemia), place names (Italia; Romania), names of Roman feasts (Lupercalia), Latin or Latinizing plurals (Amphibia; insignia; Reptilia), and in other loanwords from Latin (militia).

Origin of -ia

< New Latin, Latin, Greek, equivalent to -i- (formative or connective) or -ī- (Greek -ei-) + -a, feminine singular or neuter plural noun or adj. ending

Definition for ia (4 of 4)


in absentia.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ia

British Dictionary definitions for ia (1 of 2)



abbreviation for


British Dictionary definitions for ia (2 of 2)


suffix forming nouns

occurring in place namesAlbania; Columbia
occurring in names of diseases and pathological disorderspneumonia; aphasia
occurring in words denoting condition or qualityutopia
occurring in names of botanical generaacacia; poinsettia
occurring in names of zoological classesReptilia
occurring in collective nouns borrowed from Latinmarginalia; memorabilia; regalia

Word Origin for -ia

(for senses 1–4) New Latin, from Latin and Greek, suffix of feminine nouns; (for senses 5–6) from Latin, neuter plural suffix
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 ia


word-forming element in names of countries, diseases, flowers, from Latin and Greek -ia, which forms abstract nouns of feminine gender. In paraphernalia, Mammalia, etc. it represents the Latin and Greek plural suffix of nouns in -ium or -ion.

Chinese forms country names by adding guo "country" to the stressed syllable of the place name, hence Meiguo "America," from mei, the stressed syllable of America (minus -r-, which does not exist in Chinese). Similarly Yingguo "England," Faguo "France." Continent names are similarly formed, with zhou "continent" (e.g. Meizhou "America (continent)," Feizhou "Africa," Ouzhou "Europe").

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for ia



Disease; pathological or abnormal condition:anoxia.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.