1 of 2


plural -es
: the act or an instance of backflashing
: a groove formed around the outer portion of the flash to receive the metal squeezed through the flash in sinking an upper die

called also gutter


2 of 2

intransitive verb

of a gas : to flash back and burn at a point where combustion is not intended
of a literary or dramatic work : to introduce a flashback into the narrative
the script backflashes to a day in his life 10 years before

Word History



back entry 3 + flash

First Known Use


1944, in the meaning defined at sense 1

Intransitive Verb

circa 1909, in the meaning defined at sense 1

Time Traveler
The first known use of backflash was circa 1909

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Dictionary Entries Near backflash

Cite this Entry

“Backflash.” Dictionary, Merriam-Webster, Accessed 26 Feb. 2024.

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