Definitions of declination:

  • noun:   a polite refusal of an invitation
  • noun:   (astronomy) the angular distance to a point on a celestial object measured north or south from the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere
  • noun:   a condition inferior to an earlier condition; a gradual falling off from a better state
  • noun:   a downward slope or bend