transient luminous event
Word Rarity
Rare
Frequency: Zipf frequency 3.00 in modern English
27
Scrabble Score
22
Letters
6
Syllables
12
Unique Chars
Meaning
noun
Any of a variety of upper atmospheric optical phenomena associated with thunderstorms.
Example Sentences
- "Transient luminous events can be another source of ionization in the upper atmosphere."
- "During World War II (and probably before), high flying pilots were reported to have observed unexplained aerial phenomena (UAP), often now called transient luminous events (TLE’s), particularly in the vicinity of thunderstorms."
- "Known as Transient Luminous Events (TLEs), these unusual features were first spotted by accident in 1989."