Etymology
Meaning
An impeller is a rotating device with blades that imparts radial momentum to a fluid.
Origin
The term "impeller" was first used in the early 19th century to describe a device that lifts water from a well or a river. The device consisted of a rotating wheel with blades that were attached to a vertical shaft. As the wheel rotated, the blades pushed the water upwards, creating a flow of water.
By the late 19th century, impellers were being used in various industrial applications, including pumps, compressors, and turbines. Impellers are now used in a wide range of applications, including:
Etymology Latin impellere to push against set in motion Indo European root pel
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