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speed light

American  
[speed lahyt] / ˈspid ˌlaɪt /
Or speedlight

noun

Photography.
  1. another term for electronic flash.


Etymology

Origin of speed light

First recorded in 1895–1900, for an earlier sense

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Just as vehicles cannot navigate sudden right angle turns at speed, light does not travel efficiently through sharp bends.

From Science Daily

This is supposed to whisk us through the grocery line at the speed light.

From Los Angeles Times

Here’s the fun part: they actually travel faster than the speed light can move through the ice.

From Scientific American

If only McEwan could strap on those antigravity boots and travel at 10 times the speed light back into the past.

From Slate

Then look to best practices elsewhere to speed light rail to Ballard and West Seattle.

From Seattle Times