/ Dictionary / Index I ideal point: Meaning and Definition of Find definitions for: ide'al point' Pronunciation: [key] — Math. Math. the point at infinity in projective geometry at which parallel lines intersect. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ideal of pure reason ideal type Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language