Injector

Part of speech: noun

Pronunciation: /ɪnˈd͡ʒɛktɚ/

Definitions

1. A mechanism designed to deliver fluid or fuel into an engine or other system with precision
2. A tool or component that injects liquids or gases within machinery or equipment
3. An apparatus that introduces a substance into another medium, often for combustion or mixing purposes

Etymology: The word is built plainly: "inject" plus the agent suffix "-or", which marks a thing or person that performs an action. The verb "inject" comes from Latin "iniectare", meaning to throw or hurl into, from "in-" (into) and "iacere" (to throw). Its sense of forcing a fluid into the body is a later, medical-flavoured extension of the original idea of throwing something in. The suffix has a longer path. It descends from Latin "-tor", which Latin often attached to verb stems to name the doer of an action, and reached English through Old French "-eor" and Middle English "-our". Because the suffix came to English by way of French, it arrived in a form that English speakers adapted freely, which is why it now attaches to so many verbs, from "actor" to "sensor" to "injector".

Synonyms: injection device, syringe