Definitions

from the GNU version of the Collaborative International Dictionary of English

  • n.pl. A large division of Articulata, embracing all those that have jointed legs. It includes Insects, Arachnida, Pychnogonida, and Crustacea.

from The Century Dictionary and Cyclopedia

  • One of two prime divisions (Anarthropoda being the other) into which a subkingdom Annulosa has been divided.
  • In more modern and exact usage, one of the phyla, subkingdoms, or main types of the Metazoa, containing the articulated, invertebrate, non-ciliated animals with articulated limbs, a ganglionic nervous system, oviparous reproduction, and generally separate sexes.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes

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