Akademik

middle-class
the middle class UK US noun [S] (also the middle classes)
ECONOMICS the social group that consists of well-educated people, such as doctors, lawyers, and teachers, who are neither very rich nor very poor: lower/upper middle class »

The upper middle class tends to go into business or the professions.

middle-class /ˌmɪdl̩ˈklɑːs/ US  /ˈmɪdlˈklæs/ adjective
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Tax subsidies will be granted to help uninsured middle-class families.

Compare LOWER-CLASS(Cf. ↑lower-class), UPPER CLASS(Cf. ↑upper class), WORKING-CLASS(Cf. ↑working-class)

Financial and business terms. 2012.