/ Dictionary / Index N normal magnification: Meaning and Definition of Find definitions for: nor'mal magnifica'tion Pronunciation: [key] — Optics. Optics. the magnification produced by a telescope or microscope such that the diameter of the exit pupil of the instrument is equal to the diameter of the pupil of the eye. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. normally normal orthogonal Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language