/ Dictionary / Index M medusan: Meaning and Definition of Find definitions for: me•du•san Pronunciation: (mu-d'sun, -zun, -dy'-), [key] — adj. pertaining to a medusa or jellyfish. —n. a medusa or jellyfish. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: medusan (Thesaurus) medusafish meed Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language