/ Dictionary / Index A aphthous fever: Meaning and Definition of Find definitions for: aph'thous fe'ver Pronunciation: (af'thus, ap'thus). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Aphrodite Terra aphyllous Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language