/ Dictionary / Index A aetatis suae*: Meaning and Definition of Find definitions for: ae•ta•tis su•ae Pronunciation: (ī-tä'tis s'ī Eng. ē-tā'tis s'ē), [key] — Latin. Latin. in a certain year of one's age. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aet. aethalium 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