Definition for RA-DI-A'TA

RA-DI-A'TA, n.

The fourth great division of the animal kingdom, including those animals whose parts are arranged round an axis, and on one or several radia, or on one or several radii, or on one or several lines extending from one pole to the other. This division comprehends the echinodermata, the entozoa, the acalepha, the polypi or polypodes, and the infusoria. – Cuvier.

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