[Vocabulary] How do we call lines of smoke that airplanes left in sky?

[nuc134r]

Hello. My name is Sergio. I'm a Russian student. My hobby is photography. After learning English, of course.

Question is in title. Can I call it "airstroke" or "airline"?

 

[5jj]

I call them vapour trails.

 

[Amigos4]

Another name for vapor trails is contrails.

 

[Raymott]

[h=2]What do we call ...?[/h]

 

[emsr2d2]

At the moment, there is a lot of talk in the UK about "contrails" actually being "chemtrails/persistent contrails" - there is more than just vapour in those trails. I am expressing no opinion about the validity of the claims but the word "chemtrail" is becoming more and more prevalent thanks to site such as this.