/ Dictionary / Index E Euclidean space: Meaning and Definition of Find definitions for: Euclid'ean space' Pronunciation: [key] — Math. Math. ordinary two- or three-dimensional space. any vector space on which a real-valued inner product is defined. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Euclidean group eucrite Related Content Daily Word Quiz: crockery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language