Bluejetとは 意味・読み方・使い方

名詞

blue jet (plural blue jets)

1. (astronomy, meteorology) An upper atmospheric optical phenomenon associated with thunderstorms, a rapidly expanding disk-shaped region of luminosity, lasting less than a thousandth of a second, which occurs high above energetic cloud-to-ground lightning of positive or negative polarity.
   • 1999, Patricia Barnes-Svarney, Thomas E. Svarney, Skies of fury: weather weirdness around the world‎, Simon and Schuster, page 100:

     Mysterious bluejets can be seen with the naked eye from the ground, but they are rare and difficult to spot.

参考

• blue starter
• elve
• gigantic jet
• gnome
• pixie
• red sprite
• sprite halo
• sprite
• transient luminous event
• troll
• upward lightning