Definition of subclass
: a primary division of a class: such asa : a category in biological classification ranking below a class and above an orderb : subset 1
From the M-W Editors
First Known Use of subclass
1720
Medical Dictionary
subclass
play
noun
sub·class
\ˈsəb-ˌklas\
Medical Definition of subclass
: a category in biological classification ranking below a class and above an order
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