/ Dictionary / Index I isoperimetry: Meaning and Definition of Find definitions for: i•so•pe•rim•e•try Pronunciation: (ī"sō-pu-rim'i-trē), [key] — n. Geom. the study of isoperimeters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isoperimeter isophthalic acid Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language