Definition of proportioner in English:

proportioner

noun

  • Specifically. A motorized pump which automatically dispenses a fluid, concentrate, etc., at a set rate into the main flow of a hose or sprayer.

Origin

Late 16th century (in an earlier sense). From proportion + -er.

Pronunciation

proportioner

/prəˈpɔːʃənə//prəˈpɔːʃ(ə)nə/