definition of
declination

[1] #1 declination n. [decline] a condition inferior to an earlier condition; a gradual falling off from a better state. wn

[2] #2 declination n. [descent, declivity, fall, decline, declension, downslope] a downward slope or bend. wn

[3] #3 declination n. [celestial latitude, dec] (astronomy) the angular distance of a celestial body north or to the south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere. wn

[4] #4 declination n. [regrets] a polite refusal of an invitation. wn