1. The meteorological conditions, including temperature, precipitation, and wind, that characteristically prevail in a particular region.
2. A region of the earth having particular meteorological conditions: lives in a cold climate.
3. A prevailing condition or set of attitudes in human affairs: a climate of unrest.
[Middle English climat, from Old French, from Late Latin clima, climat-, from Greek klima, surface of the earth, region; see klei- in the Appendix of Indo-European roots.]
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