Hypertext Webster Gateway: "subkingdom"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Subkingdom \Sub*king"dom\, n.
One of the several primary divisions of either the animal, or
vegetable kingdom, as, in zo["o]logy, the Vertebrata,
Tunicata, Mollusca, Articulata, Molluscoidea, Echinodermata,
C[oe]lentera, and the Protozoa; in botany, the Phanerogamia,
and the Cryptogamia.
From WordNet (r) 1.7 (wn)
subkingdom
n : (biology) a taxonomic group comprising a major division of a
kingdom
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