vapor trail

Jet's white line

A vapor trail is the white streak left in the sky behind an aircraft flying at high altitude, formed when hot exhaust gases meet cold air and condense into ice crystals.

Also called a contrail (from condensation trail), these linear clouds can persist for hours depending on atmospheric conditions.

We watched the vapor trails crisscross the blue sky.

Conspiracy theorists sometimes call them chemtrails, claiming they contain chemical agents.

atmospheric

condensation

Vapor turning to liquid

stratosphere · troposphere · atmosphere · saturation · plume · aerosol · temperature · high-altitude · persistent · dissipating

ephemeral

fleeting

Passing very quickly

vanishing · dissipating · temporary · short-lived · evanescent · passing · impermanent · dissolving · dispersing · lingering

aviation

aircraft

Airborne transportation vehicle

altitude · flightpath · airspace · afterburner · turbofan · wingtip · propulsion · aerospace · flyover · high-altitude

skywriting

message

Transmitted communication

  • pilotOne who steers aircraft
  • scriptWritten words for performance
  • smokeAirborne combustion byproduct

banner · display · exhibition · lettering · promotion · stunt · maneuver · spelling · announcement · spectacle

Categories
Opposites
visibility/presence

vapor trailclear sky

Atmosphere without clouds

empty sky · clean air

permanence

vapor trailfixed path

Unchanging route or trajectory

composition/cleanliness

vapor trailblack smoke

Sooty airborne combustion byproduct

diesel exhaust · smog · emissions · ground fog

Family

trail, vapor, trailer, evaporate, trailing, trailed, evaporation, vaporous, trailblazer

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G