- a ridge of metal left on a casting by a seam between parts of the mold.
- a ridge formed at the edge of a forging or weld where excess metal has been squeezed out.
verb (used without object)
verb (used with object)
- to coat (plain glass or a glass or ceramic object) with a layer of colored, opalescent, or white glass.
- to apply (such a layer).
- to color or make (glass) opaque by reheating.
- a brief, intense effort that produces no really significant result.
- a person who makes such an effort; one who enjoys short-lived success.
- to have a sudden thought, insight, or inspiration about.
- to have a sudden, vivid memory or mental picture of: I just flashed on that day we spent at the lake.
- to feel an instantaneous understanding and appreciation of.
Origin of flash
Synonyms for flash
- a sudden rush of water down a river or watercourse
- a device, such as a sluice, for producing such a rush
- to signal or communicate very fastto flash a message
- to signal by use of a light, such as car headlights
Word Origin for flash
1560s, from flash (v.); originally of lightning. Meaning "first news report" is from 1857. Meaning "photographic lamp" is from 1913. The comic book character dates to 1940. Flash in the pan (1809) is from old-style guns, where the powder might ignite in the pan but fail to spark the main charge.
late 14c., from flasken (c.1300) "to dash or splash" (as water), probably imitative. Related: Flashed; flashing. Sense of "give off a sudden burst of light or flame" is 1540s. Flash flood is from 1940. Flash card is from 1923. Flash cube (remember those?) is from 1965.
flash in the pan
Someone or something that promises great success but soon fails: “The rock group that was all the rage last year turned out to be just another flash in the pan.”
flash in the pan
An effort or person that promises great success but fails. For example, His second novel proved to be a flash in the pan, or We had high hopes for the new director, but she was a flash in the pan. This metaphoric term alludes to the 17th-century flintlock musket, which could be fired only when the flash of the priming powder in the lockpan ignited the charge in the bore. When it failed to ignite, there was only a flash in the pan and the gun did not shoot.
In addition to the idiom beginning with flash
- flash in the pan
- in a flash
- quick as a wink (flash)