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declination
6 dictionary results for: declination
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
dec·li·na·tion       [dek-luh-ney-shuhn] Pronunciation Key
–noun
1.a bending, sloping, or moving downward.
2.deterioration; decline.
3.a swerving or deviating, as from a standard.
4.a polite refusal.
5.Astronomy. the angular distance of a heavenly body from the celestial equator, measured on the great circle passing through the celestial pole and the body.
6.variation (def. 8).
7.the formal refusal by a nominee of a nomination to public office.

[Origin: 1350–1400; ME declinacioun < OF declinacion < L déclīnātiōn- (s. of déclīnātiō), equiv. to déclīnāt(us), lit., turned aside (ptp. of déclīnāre; see decline, -ate1) + -iōn- -ion]

dec·li·na·tion·al, adjective
American Heritage Dictionary - Cite This Source - Share This
dec·li·na·tion       (děk'lə-nā'shən)  Pronunciation Key 
n.  
  1. A sloping or bending downward.
  2. A falling off, especially from prosperity or vigor; a decline.
  3. A deviation, as from a specific direction or standard.
  4. A refusal to accept.
  5. Magnetic declination.
  6. Astronomy The angular distance to a point on a celestial object, measured north or south from the celestial equator.


[Middle English declinacioun, from Old French declination, from Latin dēclīnātiō, dēclīnātiōn-, from dēclīnātus, past participle of dēclīnāre, to turn away; see decline.]

dec'li·na'tion·al adj.
WordNet - Cite This Source - Share This
declination

noun
1. a condition inferior to an earlier condition; a gradual falling off from a better state [syn: decline] [ant: improvement
2. a downward slope or bend [syn: descent] [ant: acclivity
3. (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 
4. a polite refusal of an invitation 

The American Heritage Science Dictionary - Cite This Source - Share This
declination       (děk'lə-nā'shən)  Pronunciation Key 
  1. On the celestial sphere, the position of a celestial object north or south of the celestial equator. Declination is measured in degrees along a great circle drawn through the object being measured and the north and south celestial poles, with positive values north of the celestial equator and negative values south of it, so that the equator itself is 0° and the north and south celestial poles are +90° and -90° declination respectively. See more at equatorial coordinate system.
  2. See magnetic declination.

American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

declination dec·li·na·tion (děk'lə-nā'shən)
n.

  1. A bending, sloping, or other deviation from a normal vertical position.
  2. A deviation of the vertical meridian of the eye to one or the other side due to rotation of the eyeball about its anteroposterior axis.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Declination

Dec`li*na"tion\, n. [L. declinatio a bending aside, an avoiding: cf. F. d['e]clination a decadence. See Declension.]

1. The act or state of bending downward; inclination; as, declination of the head.

2. The act or state of falling off or declining from excellence or perfection; deterioration; decay; decline. "The declination of monarchy." --Bacon.

Summer . . . is not looked on as a time Of declination or decay. --Waller.

3. The act of deviating or turning aside; oblique motion; obliquity; withdrawal.

The declination of atoms in their descent. --Bentley.

Every declination and violation of the rules. --South.

4. The act or state of declining or refusing; withdrawal; refusal; averseness.

The queen's declination from marriage. --Stow.

5. (Astron.) The angular distance of any object from the celestial equator, either northward or southward.

6. (Dialing) The arc of the horizon, contained between the vertical plane and the prime vertical circle, if reckoned from the east or west, or between the meridian and the plane, reckoned from the north or south.

7. (Gram.) The act of inflecting a word; declension. See Decline, v. t., 4.

Angle of declination, the angle made by a descending line, or plane, with a horizontal plane.

Circle of declination, a circle parallel to the celestial equator.

Declination compass (Physics), a compass arranged for finding the declination of the magnetic needle.

Declination of the compass or needle, the horizontal angle which the magnetic needle makes with the true north-and-south line.

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