Meaning of Microciona*

Mi•cro•ci•on•a

Pronunciation: (mī"kru-sī'u-nu), [key]
— n.
  1. a genus of bright-red sponges of the Atlantic coasts of North America and Europe, used in experiments on the dissociation and reintegration of sponge cells.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.