[suhb-fam-uh-lee, -fam-lee, suhb-fam-uh-lee, -fam-lee]
noun, plural subfamilies.
Biology. a category of related genera within a family.
Linguistics. (in the classification of related languages within a family) a category of a higher order than a branch. Compare branch ( def 8 ), family ( def 14 ).

1825–35; sub- + family Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
subfamily (ˈsʌbˌfæmɪlɪ)
n , pl -lies
1.  biology a taxonomic group that is a subdivision of a family
2.  any analogous subdivision, as of a family of languages

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

subfamily sub·fam·i·ly (sŭb'fām'ə-lē)
A taxonomic category ranking between a family and a genus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
subfamily   (sŭb'fām'ə-lē)  Pronunciation Key 
A subdivision of a family of organisms, containing one or more genera. The names of subfamilies in the animal kingdom typically end in -inae, as in Cerambycinae, a subfamily of the longhorn beetle family Cerambycidae.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
It was so odd he put it in its own genus, and even gave it its own subfamily.
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