Definitions

from The Century Dictionary.

  • In Cuvier's system of classification, the fourth grand branch of the animal kingdom, containing “the radiated animals or zoöphytes.”
  • In later classifications, with various limitations and restrictions of sense 1.

from the GNU version of the Collaborative International Dictionary of English.

  • noun plural (Zoöl.) An extensive artificial group of invertebrates, having all the parts arranged radially around the vertical axis of the body, and the various organs repeated symmetrically in each ray or spheromere.

Etymologies

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