Subfamily Definition
 sŭbfămə-lē 
  subfamilies
  
    noun
  
 Any main natural subdivision of a family of plants or animals.
 Webster's New World 
A major division of a language family, above a branch.
 The Indo-Iranian subfamily of Indo-European.
 Webster's New World 
Other Word Forms of Subfamily
Noun
Singular:
 subfamilyPlural:
 subfamiliesOrigin of Subfamily
-  
sub- +"Ž family
From Wiktionary
 
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