subdistrict

noun
sub·​dis·​trict | \ ˌsəb-ˈdi-(ˌ)strikt How to pronounce subdistrict (audio) \
variants: or sub-district
plural subdistricts or sub-districts

Definition of subdistrict

: a subdivision of a district In 1996, county commissioners created a public library district with two subdistricts—Eastern and Western—and set a property tax rate that voters in each district had to adopt.— Bob Watson Benefited water districts and subdistricts, organized for the purpose of supplying water for particular areas …— U.S. Bureau of the Census

First Known Use of subdistrict

1790, in the meaning defined above

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