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flashbulb

American  
[flash-buhlb] / ˈflæʃˌbʌlb /
Or flash bulb

noun

Photography.
  1. a glass bulb, filled with oxygen and aluminum or zirconium wire or foil, which, when ignited electrically, burns with a brilliant flash to provide momentary illumination of a subject.


flashbulb British  
/ ˈflæʃˌbʌlb /

noun

  1. Also called: photoflashphotog a small expendable glass light bulb formerly used to produce a bright flash of light Compare electronic flash

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of flashbulb

First recorded in 1930–35; flash + bulb

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.

What’s left is a spectral scene, ghosted by the limitations of old black-and-white photographic technology and further heightened by the uneven glow generated by the camera’s flashbulb.

From Los Angeles Times • Sep. 22, 2025

The Sept. 11 attacks fall into the category of what some psychologists call flashbulb memories: moments of collective trauma about which people have unusually vivid recollections.

From New York Times • May 3, 2022

For me, it became a flashbulb memory, a reminder that art has the power to not only divert people from their dispirited ruminations but also help them reframe their despairing mind-sets.

From Washington Post • Jan. 21, 2022

The Kodak Flashcube—a rotating cube with a miniature flashbulb incarcerated within each of its four mirrored compartments—made amateur photography of the domestic interior possible from the mid-1960s onwards.

From Slate • Dec. 21, 2021

The prints, not noticeable to the naked eye, registered on film; indeed, the delineating glare of a flashbulb had revealed their presence with superb exactness.

From "In Cold Blood" by Truman Capote

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