subindustry
noun
sub·in·dus·try
| \ ˌsəb-ˈin-(ˌ)də-strē
\
\
variants:
or sub-industry
plural subindustries
or sub-industries
Definition of subindustry
: a lesser industry
especially
: one derived from or dependent on a larger industry
a technology subindustry A whole subindustry of agents and publicists has sprung up to manage everything from a chef's media appearances to his hairstyle. — Lisa Abend