spinner
n. countablen. a small tool or part of a machine that turns around very fast. You might see this on a fishing line to attract fish or as a toy you spin with your fingers.
n. a device or component designed to rotate rapidly around a central axis. Often refers to a specific type of fishing lure with a rotating blade or a mechanical part in textile production.
The spinner on his fishing line caught the light.
The mechanic replaced the broken spinner in the engine to ensure the cooling fan could rotate properly again.
Anglers often prefer using a silver spinner in murky water because the rapid rotation creates vibrations and flashes of light that attract predatory fish from a distance.
Commonly used in technical contexts to describe rotating parts or in recreational contexts like fishing and gaming.