from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A taxonomic category of related organisms constituting a major division of a kingdom.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A taxonomic category below kingdom and above superphylum.
from the GNU version of the Collaborative International Dictionary of English
- n. One of the several primary divisions of either the animal, or vegetable kingdom, as, in zoölogy, the Vertebrata, Tunicata, Mollusca, Articulata, Molluscoidea, Echinodermata, Cœlentera, and the Protozoa; in botany, the Phanerogamia, and the Cryptogamia.
from The Century Dictionary and Cyclopedia
- n. A prime subdivision of the animal kingdom; a superclass corresponding to the “branches” or “embranchements” of French zoölogists, as Cuvier, who recognized the four subkingdoms of the vertebrates, mollusks, articulates, and radiates.
- n. In botany, a primary division of the vegetable kingdom; the highest class below the kingdom itself.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (biology) a taxonomic group comprising a major division of a kingdom
sub- + kingdom (Wiktionary)