Dictionary.com
definitions

upwind

[adverb, adjective uhp-wind; noun uhp-wind]
adverb
  1. toward or against the wind or the direction from which it is blowing: The hunters stalked upwind.
adjective
  1. moving or situated toward or in the direction from which the wind is blowing: an upwind leap; the upwind portions of the aircraft.
noun
  1. a wind that blows against one's course or up a slope.

Origin of upwind

First recorded in 1830–40; up- + wind1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for upwind

Historical Examples of upwind

  • What had aroused him, at that distance and upwind, I do not know.

    The Land of Footprints

    Stewart Edward White

  • I was the upwind wheeler and had to hitch on to the side of the sledge to reduce the leeway as much as possible.

  • He sneaked toward them upwind in order that he might still smell them, and it also kept them from smelling him.

    Monarch, The Big Bear of Tallac

    Ernest Thompson Seton

  • Upwind, not in order to prevent the Prairie-dog smelling her, but so that she could smell him, which came to the same thing.

    Johnny Bear

    E. T. Seton

  • In the beginning he rushes, upwind in instinctive reaction against the strange scent.

    The Land of Footprints

    Stewart Edward White

British Dictionary definitions for upwind

upwind

adverb
  1. into or against the wind
  2. towards or on the side where the wind is blowing; windward
adjective
  1. going against the windthe upwind leg of the course
  2. on the windward sidethe upwind side of the house has weathered
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for upwind
adj.

1838, from up- + wind (n.1). Originally a nautical term.

Online Etymology Dictionary, © 2010 Douglas Harper