Synonyms of 'declination'
slopeDictionary, decline, dip
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A descent is a surface that slopes downwards, for example the side of a steep hill.
On the descents, cyclists freewheel past cars.
Deviation means doing something that is different from what people consider to be normal or acceptable.
Deviation from the norm is not tolerated.
Thesaurus for declination from the Collins English Thesaurus
the angular distance, esp in degrees, of a star, planet , etc, from the celestial equator measured north ( positive ) or south ( negative ) along the great circle passing through the celestial poles and the body