Definition of 'declination'

Noun

1. a condition inferior to an earlier condition; a gradual falling off from a better state
      Synonyms: decline
      Antonyms: improvement melioration
2. a downward slope or bend
      Synonyms: descent declivity fall decline declension downslope
      Antonyms: ascent acclivity rise raise climb upgrade
3. (astronomy) the angular distance of a celestial body north or south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere
      Synonyms: celestial latitude dec
4. a polite refusal of an invitation
      Synonyms: regrets

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