IPA: /ɪnˈtreɪnər/
KK: /ɪnˈtreɪnər/
A device that helps mix a liquid with a gas or steam, allowing the liquid to be carried along by the gas or steam flow.
The engineer installed an entrainer to improve the efficiency of the gas system.
Entrainer → It is formed from "en-" (meaning to cause to) and "traîner" (from Old French, meaning to drag or pull). The word "entrainer" means to cause someone or something to be dragged along or to lead someone into a situation.
Think of 'causing to' ('en-') lead or 'drag' ('traîner') someone into a situation — that's what entrainer means.