Declination is a noun form of the verb decline and may refer to:

• Declination, coordinate used in astronomy
• Magnetic declination, angle that must be added or subtracted in the use of compass for geography
• Grid declination, angle between the compass north and north direction of the map coordinate grid
• Clinamen, a concept in early atomic theory

Look up declination in Wiktionary, the free dictionary.

• Declension, use of case in linguistics
• Decline (disambiguation)

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