contrail
Visiting these websites, I learned that "chemtrails" is the name given to sky tracks supposedly left by the deliberate release of substances not found in ordinary contrails.
He claimed the aircraft was a chemtrail spray plane because it had no windows and no markings.
They reported an increase in chemtrail spraying activity in their area and the development of flu-like symptoms, fatigue, and body aches.
SMART Vocabulary: related words and phrases Plotting & trapping
be in league with someoneidiom
cahoots
catch someone out
chicanery
cloak-and-dagger
conspiracy theorist
conspiracy theory
conspirator
conspire
entrap
insinuate
outplot
plotter
ploy
pretext
pretextual
put-up job
sting
what's your game?idiom
wheeze
You can also find related words, phrases, and synonyms in the topics:
Precipitation: clouds, dew, fog & steam
Air travel: aviation