/ Dictionary / Index A acetylsalicylic acid: Meaning and Definition of Find definitions for: a•ce'tyl•sal•i•cyl'ic ac'id Pronunciation: (u-sēt'l-sal"u-sil'ik, u-set'-, as'i-tl- u-sēt"l-sal"u-sil'ik, u-set"-, as"i-tl-), [key] — Pharm. Pharm. aspirin (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acetylsalicylate acey-deucy Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language