another term for vapour trail
 Example sentencesExamples
-  With the massive rise in global air traffic, high-altitude aircraft condensation trails - known as contrails - are an increasingly familiar sight.
 -  But, what about cloning out an airplane condensation trail in a landscape photograph?
 -  Just as an airplane leaves behind a condensation trail, the iron particles leave the newly formed nanotubes lying along their ‘tracks.’
 -  Another answer is that the so-called chemtrails are actually just normal condensation trails.
 -  The circular objects were faintly self-luminous and left no condensation trail in the upper atmosphere.