[ suhb-klas, -klahs ]
/ ˈsʌbˌklæs, -ˌklɑs /


a primary division of a class.
a subordinate class, especially one of persons who lack the rights and privileges of the primary class: a subclass of alien workers.
Biology. a category of related orders within a class.

verb (used with object)

to place in a subclass.

Origin of subclass

First recorded in 1810–20; sub- + class Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for subclass

British Dictionary definitions for subclass

/ (ˈsʌbˌklɑːs) /


a principal subdivision of a class
biology a taxonomic group that is a subdivision of a class
maths another name for subset (def. 1)


(tr) to assign to a subclass
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

Medicine definitions for subclass

[ sŭbklăs′ ]


A taxonomic category of ranking between a class and an order.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for subclass

[ sŭbklăs′ ]

A taxonomic category of related organisms ranking below a class and containing one or more orders.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.