subsector

noun
sub·​sec·​tor | \ ˈsəb-ˌsek-tər How to pronounce subsector (audio) \
variants: or sub-sector
plural subsectors or sub-sectors

Definition of subsector

: a sector that is part of a larger sector …the category is more diversified than you may think, since it can include such varied subsectors as aerospace components, high-tech industrial machinery, and scientific instruments.— Stephanie Losee

First Known Use of subsector

1906, in the meaning defined above

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The first known use of subsector was in 1906

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