Definition of exposure:

part of speech: noun

See expose.

part of speech: noun

The state of being laid open to danger or inconvenience; situation of a place in regard to the points of the compass, or to sun and air; the laying open the character or conduct of any one; the act of exposing anything.

Usage examples:

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north wind

The cold wind that blows from the north in the northern hemisphere- a warm wind of the southern hemisphere. ...