subscience

noun

sub·​sci·​ence ˈsəb-ˌsī-ən(t)s 

variants or sub-science

plural subsciences or sub-sciences

: a field of science that is part of a broader field

the subscience of evolutionary biology

… science is a diverse, social enterprise that has … developed different methodologies in different subsciences …

—Carlin Romano

Word History

First Known Use

1834, in the meaning defined above