/ Dictionary / Index A alethiology: Meaning and Definition of Find definitions for: a•le•thi•ol•o•gy Pronunciation: (u-lē"thē-ol'u-jē), [key] — n. the branch of logic dealing with truth and error. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Alethia alette Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language