/ Dictionary / Index C central projection: Meaning and Definition of Find definitions for: cen'tral projec'tion Pronunciation: [key] — Geom. Geom. a projection of one plane onto a second plane such that a point on the first plane and its image on the second plane lie on a straight line through a fixed point not on either plane. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. central processing unit Central Provinces Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language