Longman Dictionary of Contemporary English homepage

flash

2 noun
     
Related topics: Military, Photography, Computers
flash2
1

light

[countable] a bright light that shines for a short time and then stops shining:
Two flashes mean danger.
flash of
A flash of lightning lit up the night sky.
brilliant/blinding flash
a brilliant flash of light
2

camera

[uncountable and countable]TCP a special bright light used when taking photographs indoors or when there is not much light:
Did the flash go off?
3

in/like a flash

also quick as a flash very quickly:
Just wait here. I'll be back in a flash.
4

flash of inspiration/brilliance/insight/anger etc

if someone has a flash of brilliance, anger etc, they suddenly have a clever idea or a particular feeling
5

a flash in the pan

a sudden success that ends quickly and is unlikely to happen again:
Beene's new novel proves he isn't just a flash in the pan.
6

bright colour/something shiny

[countable] if there is a flash of something brightly coloured or shiny, it appears suddenly for a short time
flash of
The bird vanished in a flash of blue.
7TD

computer

[uncountable] trademark a system of instructions for a computer that is used especially to make pictures on a website appear to move:
Flash animation
8

look

[countable] British English a quick look used humorously [= glimpse]
9

military

[countable] British EnglishPM a small piece of coloured cloth worn on the shoulder of a military uniform

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