from the GNU version of the Collaborative International Dictionary of English
- n.pl. One of the subclasses of Crustacea, including a large number of species, many of them minute. The group embraces several orders; as the Phyllopoda, Ostracoda, Copepoda, and Pectostraca. See copepoda, phyllopoda, and cladocera.
from The Century Dictionary and Cyclopedia
- In zoology: Latreille's name for all crustaceans, except the stalk-eyed and sessile-eyed groups.
- In various Systems, one of two main divisions of Crustacea proper (the other being Malacostraca).
- As restricted, defined, and retained by Huxley, those Crustacea which have not more than three maxilliform gnathites and completely specialized jaws, the abdominal segments (counting as such those which lie behind the genital aperture) devoid of appendages, if there be any abdomen, and the embryo almost always leaving the egg as a nauplius-form.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use
Sorry, no etymologies found.