blue flash

The term "blue flash" describes various phenomena across different fields, from rare atmospheric events to electrical discharges and paranormal sightings.

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Definition

C1Meteorology

(technical)A rare optical event seen during sunrise or sunset, where a brief blue light appears due to atmospheric refraction.

Example

  • During the sunset, we were lucky to witness a blue flash just above the horizon.

C2Nuclear Physics

(technical)A phenomenon where a burst of blue light occurs due to a criticality incident in nuclear materials.

Example

  • The blue flash indicated a serious radiation leak in the facility.

B2Paranormal

(informal)A sudden, unexplained burst of blue light often linked to supernatural events.

Example

  • The witnesses described seeing a blue flash moments before the supposed alien encounter.

B2Electrical

(technical)A bright blue light caused by electrical arcing, often due to a short circuit or transformer failure.

Example

  • The power outage was preceded by a blue flash in the sky.

C1Medical

(technical)A visual phenomenon where a blue light appears in one's vision, potentially indicating retinal issues.

Example

  • The patient reported seeing a blue flash, prompting an immediate eye examination.

Similar

Terms that have similar or relatively close meanings to "blue flash":

double flashflash overflash cutflash packside flashflash for cashblue fireblue streaklightning boltflash in the panblue lightlightning fastquick as a flashlightning strikeflash pointblitz outfull bluewhite lightelectric dischargeblaze downice blue