Contrails
noun, verb
noun, verb ·Rare ·Advanced level
Definitions
Noun
- 1 plural of contrail form-of, plural
Verb
- 1 third-person singular simple present indicative of contrail form-of, indicative, present, singular, third-person
Example
More examples"Contrails are long, narrow, ice-crystal clouds that form behind jet planes flying at high altitudes in below-freezing temperatures. They result from the condensation of water vapor remaining in jet exhaust."