/ Dictionary / Index S sexagesimal: Meaning and Definition of Find definitions for: sex•a•ges•i•mal Pronunciation: (sek"su-jes'u-mul), [key] — adj. pertaining to or based upon the number 60. —n. a fraction whose denominator is 60 or a power of 60. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sexagesimal (Thesaurus) Sexagesima sex appeal Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language