me•du•saPronunciation: (mu-dOO'su, -zu, -dyOO'-), [key]
—pl. -sas, -saePronunciation: (-sē, -zē). [key]
a saucer-shaped or dome-shaped, free-swimming jellyfish or hydra.
Me•du•saPronunciation: (mu-dOO'su, -zu, -dyOO'-), [key]
the only mortal of the three Gorgons. She was killed by Perseus, and her head was mounted upon the aegis of Zeus and Athena.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.