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subphylum

[suhb-fahy-luh m]
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noun, plural sub·phy·la [suhb-fahy-luh] /sʌbˈfaɪ lə/. Biology.
  1. a category of related classes within a phylum.

Origin of subphylum

From New Latin, dating back to 1930–35; see origin at sub-, phylum
Related formssub·phy·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for subphylum

subphylum

noun plural -la (-lə)
  1. biology a taxonomic group that is a subdivision of a phylum
Derived Formssubphylar, adjective
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

subphylum in Medicine

subphylum

(sŭbfī′ləm)
n. pl. sub•phy•la (-lə)
  1. A taxonomic category ranking between a phylum and a class.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

subphylum in Science

subphylum

[sŭbfī′ləm]
Plural subphyla
  1. A subdivision of a phylum of organisms. A subphylum contains one or more classes.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.