stroboscope

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

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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.