/ Dictionary / Index P pseudosphere: Meaning and Definition of Find definitions for: pseu•do•sphere Pronunciation: (s'du-sfēr"), [key] — n. Geom. a surface generated by revolving a tractrix about its asymptote. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pseudosolution pseudosymmetry Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language