/ Dictionary / Index I -iasis: Meaning and Definition of Find definitions for: -iasis Pronunciation: [key] a noun suffix occurring in loanwords from Greek:Cf. -asis. psoriasis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Iaşi IAT Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language