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[suhb-fahy-luh m] /sʌbˈfaɪ ləm/
noun, plural subphyla
[suhb-fahy-luh] /sʌbˈfaɪ lə/ (Show IPA).
a category of related classes within a phylum.
Origin of subphylum
1930-35; < New Latin; see sub-, phylum
Related forms
subphylar, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for subphylum


noun (pl) -la (-lə)
(biology) a taxonomic group that is a subdivision of a phylum
Derived Forms
subphylar, 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
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subphylum in Medicine

subphylum sub·phy·lum (sŭb'fī'ləm)
n. pl. sub·phy·la (-lə)
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.
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subphylum in Science
Plural subphyla
A subdivision of a phylum of organisms. A subphylum contains one or more classes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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