/ Dictionary / Index P paracetaldehyde: Meaning and Definition of Find definitions for: par•ac•et•al•de•hyde Pronunciation: (par"as-i-tal'du-hīd"), [key] — n. Chem. paraldehyde. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. paracentesis parachronism Related Content Daily Word Quiz: jugular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language