Breadcrumb Home > Dictionary > Index E Eratosthenes: Meaning and Definition of Find definitions for: Er•a•tos•the•nes Pronunciation: (er"u-tos'thu-nēz"), [key] — n. 276?–195? b.c., Greek mathematician and astronomer at Alexandria. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eratosthenes (Thesaurus) Erato Erbil ✖ Related Content Daily Word Quiz: tautology Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language