stroboscope

From Ancient Greek στρόβος (stróbos, “whirl”) and Ancient Greek σκοπέω (skopéō, “examine, inspect, look to or into, consider”).

stroboscope (plural stroboscopes)

1. Instrument for studying or observing periodic movement by rendering a moving body visible only at regular intervals.
2. A lamp that produces short bursts of light that synchronizes with a camera shutter for photographing fast-moving objects.
3. A photograph produced by such a machine.

From strobo- +‎ -scope.

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stroboscope m (plural stroboscopes)

1. stroboscope

• stroboscopie
• stroboscopique

• “stroboscope”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.