/ Dictionary / Index E episyllogism: Meaning and Definition of Find definitions for: ep•i•syl•lo•gism Pronunciation: (ep"u-sil'u-jiz"um), [key] — n. Logic. a syllogism one of the premises of which is the conclusion of a preceding syllogism; any of the syllogisms included in a polysyllogism except the first one. Cf. polysyllogism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. epistyle epit. Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language