1.
contrail; vapor trail (left by an aircraft)
The white trail of condensed water vapor that forms behind a high-flying aircraft. Literally 飛行機 (airplane) + 雲 (cloud).
空に飛行機雲が見えた。
I saw a contrail in the sky.
青空に白い飛行機雲が伸びていく。
A white contrail stretches across the blue sky.
二つの飛行機雲が交差して、空に大きなバツ印を描いた。
Two contrails crossed, drawing a big X in the sky.
Compound of 飛行機 (airplane) + 雲 (cloud), with rendaku changing くも to ぐも. Refers to the white vapor trail behind a jet.
COMMON COLLOCATIONS:
- 飛行機雲ができる: a contrail forms
- 飛行機雲が伸びる: a contrail stretches out
- 飛行機雲が消える: a contrail fades away