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Word of the Day
Sunday, September 29, 2013

Definitions for contrail

  1. a visible condensation of water droplets or ice crystals from the atmosphere, occurring in the wake of an aircraft, rocket, or missile under certain conditions.

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Citations for contrail
With the air over the desert as dry as it was this time of year, the target would not leave much of a contrail, if any. Richard Hilton, Skyhammer, 2009
"Man is not merely a linear thinker," she said, drawing a line of mist in the air. It hovered like a distant contrail. Piers Anthony, On a Pale Horse, 1983
Origin of contrail
Contrail was coined in the 1940s as a portmanteau of condensation and trail to refer to the water vapor emitted by aircraft.