/ Dictionary / Index A adst. feb.: Meaning and Definition of Find definitions for: adst. feb. Pronunciation: [key] (in prescriptions) when fever is present. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. adsorbate adstratum Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language