• synonyms


[suhb-king-duh m, suhb-king-]
noun Biology.
  1. a category of related phyla within a kingdom.
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Origin of subkingdom

First recorded in 1815–25; sub- + kingdom
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for subkingdom

Historical Examples

  • This subkingdom is known by naturalists under the name of the Arthropoda.

    The Butterfly Book

    William Jacob Holland

  • The subkingdom of the Arthropoda is again subdivided into six classes.

    The Butterfly Book

    William Jacob Holland

  • A class of invertebrate animals belonging to the subkingdom Annuloso.

  • Subkingdom, sub-king′dum, n. a subordinate kingdom: a division of a kingdom: a subdivision.

  • This subkingdom comprises at present such familiar forms as the crinoid, the starfish, and the sea urchin.

    The Elements of Geology

    William Harmon Norton

British Dictionary definitions for subkingdom


  1. biology a taxonomic group that is a subdivision of a kingdom
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

subkingdom in Medicine


  1. A taxonomic category constituting a major division of a kingdom.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

subkingdom in Science


  1. A subdivision of a kingdom of organisms. A subkingdom contains one or more phyla.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.