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eccentricity - 4 dictionary results

ec⋅cen⋅tric⋅i⋅ty

  [ek-suhn-tris-i-tee, ek-sen-]
Use eccentricity in a Sentence
–noun, plural -ties.
1. an oddity or peculiarity, as of conduct: an interesting man, known for his eccentricities.
2. the quality of being eccentric.
3. the amount by which something is eccentric.
4. Machinery. the distance between the centers of two cylindrical objects one of which surrounds the other, as between an eccentric and the shaft on which it is mounted.
5. Mathematics. a constant expressed as the ratio of the distance from a point on a conic to a focus and the distance from the point to the directrix.
Origin:
1545–55; < ML eccentricitās, equiv. to eccentric- (see eccentric ) + -itās -ity

Synonyms:
2. queerness, strangeness, oddness, freakishness, aberration. Eccentricity, peculiarity, quirk, idiosyncrasy all refer to some noticeable deviation in behavior, style, or manner from what is normal or expected. Eccentricity usually suggests a mildly amusing but harmless characteristic or style: a whimsical eccentricity in choice of clothing. Peculiarity is the most general of these words, referring to almost any perceptible oddity or departure from any norm: the peculiarity of his eyelashes, of the weather. Quirk often refers to a minor, unimportant kind of oddity: Her one quirk was a habit of speaking to strangers in elevators. Sometimes quirk has overtones of strangeness: sexual quirks. Idiosyncrasy refers to a variation in behavior or manner exclusive to or characteristic of a single individual: idiosyncrasies of style that irritated editors but often delighted readers.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To eccentricity
ec·cen·tric·i·ty   (ěk'sěn-trĭs'ĭ-tē)   
n.   pl. ec·cen·tric·i·ties
    1. The quality of being eccentric.
    2. Deviation from the normal, expected, or established.
  2. An example or instance of eccentric behavior.
  3. Physics The distance between the center of an eccentric and its axis.
  4. Mathematics The ratio of the distance of any point on a conic section from a focus to its distance from the corresponding directrix. This ratio is constant for any particular conic section.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Eccentricity

Ec`cen*tric"i*ty\, n.; pl. Eccentricities. [Cf. F. excentricit['e].]

1. The state of being eccentric; deviation from the customary line of conduct; oddity.

2. (Math.) The ratio of the distance between the center and the focus of an ellipse or hyperbola to its semi-transverse axis.

3. (Astron.) The ratio of the distance of the center of the orbit of a heavenly body from the center of the body round which it revolves to the semi-transverse axis of the orbit.

4. (Mech.) The distance of the center of figure of a body, as of an eccentric, from an axis about which it turns; the throw.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : eccentricity
Spanish: excentricidad,
German: die Wunderlichkeit,
Japanese: 風変わり
More Translations »
eccentricity   (ěk'sěn-trĭs'ĭ-tē)  Pronunciation Key 
  1. A measure of the deviation of an elliptical path, especially an orbit, from a perfect circle. It is equal to the ratio of the distance between the foci of the ellipse to the length of the major axis of the ellipse (the distance between the two points farthest apart on the ellipse). Eccentricity ranges from zero (for a perfect circle) to values approaching 1 (highly elongated ellipses).
  2. The ratio of the distance of any point on a conic section from a focus to its distance from the corresponding directrix. This ratio is constant for any particular conic section.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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