Meaning of moon jellyfish

moon' jel"lyfish

Pronunciation: [key]
  1. a coelenterate, Aurelia aurita, inhabiting all seas, having a luminescent milky-pink or milky-orange, umbrellalike disk 3–9 in. (8–23 cm) in diameter. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.