'downwind' definitions:

Definition of 'downwind'

From: WordNet
adverb
With the wind; in the direction the wind is blowing; "they flew downwind" [ant: against the wind, into the wind, upwind]
adverb
Away from the wind; "they were sailing windward" [syn: windward, downwind] [ant: leeward, upwind]
adjective
Towards the side away from the wind [syn: downwind, lee(a)]

Definition of 'downwind'

From: GCIDE
  • downwind \down"wind\ adj. on the side or in the direction away from the direction from which the wind is blowing; in the direction toward which the wind is blowing; as, good hunters stay downwind of their prey. Opposite of upwind, and windward.
  • Syn: lee(prenominal), leeward. [WordNet 1.5]