subclassification

noun

sub·​clas·​si·​fi·​ca·​tion ˌsəb-ˌkla-sə-fə-ˈkā-shən 

1

: a primary division of a classification

2

: arrangement into or assignment to subclassifications

subclassify

ˌsəb-ˈkla-sə-ˌfī 

transitive verb

Word History

First Known Use

1831, in the meaning defined at sense 1