Plural of contrail; multiple white trails of condensed vapor left by aircraft flying at high altitudes.
Simple plural of 'contrail' using standard '-s' ending. Formed from the same 'condensation trail' contraction as the singular form.
A clear blue sky suddenly filled with contrails is visually dramatic—you can literally watch the history of aircraft movement written across the sky in white lines.
Complete word intelligence in one call. Free tier — 50 lookups/day.