Expellers

Part of speech: noun

Definitions

1. Devices used to extract oil or liquid from solids by applying pressure
2. Mechanisms that forcibly remove a substance, particularly in the context of food processing
3. Tools employed to separate components in various industries, enhancing production efficiency

Etymology: The word is a plural, so it takes its history from "expeller", which is simply "expel" with the agent suffix "-er". "Expel" comes from Latin "expellere", meaning "to drive out", built from "ex-" ("out") and "pellere" ("to drive"). The idea of forcing something out is still at the heart of the machine: an expeller presses seeds or nuts until their oil is squeezed out. The suffix has a longer ancestry than the verb. The "-er" ending traces back through Middle English and Old English to the Latin "-arius", which denoted a person or thing connected with something, and that Latin suffix passed through Old French "-ier" before settling into English. Its Old English forms, which descend from a Germanic ancestor, show that the "-er" ending is inherited rather than borrowed as a whole word.

Synonyms: ejectors, removers