Pronunciation: ( jel'ē-fish"), [key]
—pl. (esp. collectively) -fish, (esp. referring to two or more kinds or species) -fish•es.
1. any of various marine coelenterates of a soft, gelatinous structure, esp. one with an umbrellalike body and long, trailing tentacles; medusa.
2. Informal.a person without strong resolve or stamina; an indecisive or weak person.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.