scientific instrument that provides a flashing light synchronized with the periodic movement of an object; can make moving object appear stationary
"The astronomer adjusted the strobe on her camera to freeze the rapid rotation of the distant planet's storms."
A stroboscopic lamp: a device used to produce regular flashes of light.
"The mechanic turned on the strobe to check if the engine's vibration was syncing up with the rotating parts."
To flash like a stroboscopic lamp.
"The broken camera flash strobe so brightly that I had to cover my eyes immediately."