Dictionary![]() ![]() -iaa noun suffix having restricted application in various fields, as in names of diseases (malaria; anemia), place names (Italia; Rumania), names of Roman feasts (Lupercalia), Latin or Latinizing plurals (Amphibia; insignia; Reptilia), and in other loanwords from Latin (militia). IAIowa (approved esp. for use with zip code). Ia.Iowa. i.a.in absentia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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