/ Dictionary / Index P -phasia: Meaning and Definition of Find definitions for: -phasia Pronunciation: [key] a combining form used in the names of speech disorders, as specified by the initial element: aphasia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phase velocity phasis Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language