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English

Etymology

From Latin eccentricus, literally out of centre, from Greek: ekkentros, not having the same centre.

Pronunciation

  • IPA: /ɪkˈsɛntrɪk/ (RP)
  • IPA: /ɛkˈsɛntrɪk/ (US)
  • An audio transcript can be found at en-us-eccentric.ogg


Adjective

  1. Not at or in the centre.
  2. Not perfectly circular
  3. : an eccentric or elliptical orbit
  4. Having a different center.
  5. Deviating from the norm; behaving unexpectedly or differently.
  6. : "He has become really eccentric over the years."
  7. (of a motion) against or in the opposite direction of contraction of a muscle. (E.g. flexion of the lower arm while flexing the tricep; opening of the jaw while flexing the masseter). (Antonym: concentric)


Synonyms


Quotations


Translations

Noun

  1. A disk or wheel with its axis off centre, giving a reciprocating motion.
  2. One who does not behave like others.
  3. a kook


Translations

Related terms


Category:Greek derivations

fa:eccentric fr:eccentric io:eccentric id:eccentric hu:eccentric pl:eccentric ru:eccentric ta:eccentric te:eccentric vi:eccentric zh:eccentric

GNU Project's publication of CIDE, the Collaborative International Dictionary of English Eccentric \Ec*cen"tric\ ([e^]k*s[e^]n"tr[i^]k), a. [F.
excentrique, formerly also spelled eccentrique, fr. LL.
eccentros out of the center, eccentric, Gr. 'e`kkentros; 'ek
out of + ke`ntron center. See Ex-, and Center, and cf.
Excentral.]
1. Deviating or departing from the center, or from the line
of a circle; as, an eccentric or elliptical orbit;
pertaining to deviation from the center or from true
circular motion.
[1913 Webster]

2. Not having the same center; -- said of circles, ellipses,
spheres, etc., which, though coinciding, either in whole
or in part, as to area or volume, have not the same
center; -- opposed to concentric.
[1913 Webster]

3. (Mach.) Pertaining to an eccentric; as, the eccentric rod
in a steam engine.
[1913 Webster]

4. Not coincident as to motive or end.
[1913 Webster]

His own ends, which must needs be often eccentric to
those of his master. --Bacon.
[1913 Webster]

5. Deviating from stated methods, usual practice, or
established forms or laws; deviating from an appointed
sphere or way; departing from the usual course; irregular;
anomalous; odd; as, eccentric conduct. "This brave and
eccentric young man." --Macaulay.
[1913 Webster]

He shines eccentric, like a comet's blaze. --Savage.
[1913 Webster]

Eccentric anomaly. (Astron.) See Anomaly.

Eccentric chuck (Mach.), a lathe chuck so constructed that
the work held by it may be altered as to its center of
motion, so as to produce combinations of eccentric
combinations of eccentric circles.

Eccentric gear. (Mach.)
(a) The whole apparatus, strap, and other parts, by which
the motion of an eccentric is transmitted, as in the
steam engine.
(b) A cogwheel set to turn about an eccentric axis used to
give variable rotation.

Eccentric hook or Eccentric gab, a hook-shaped journal
box on the end of an eccentric rod, opposite the strap.

Eccentric rod, the rod that connects an eccentric strap
with any part to be acted upon by the eccentric.

Eccentric sheave, or Eccentric pulley, an eccentric.

Eccentric strap, the ring, operating as a journal box, that
encircles and receives motion from an eccentric; -- called
also eccentric hoop.

Syn: Irregular; anomalous; singular; odd; peculiar; erratic;
idiosyncratic; strange; whimsical.
[1913 Webster]
GNU Project's publication of CIDE, the Collaborative International Dictionary of English Eccentric \Ec*cen"tric\ ([e^]k*s[e^]n"tr[i^]k), n.
1. A circle not having the same center as another contained
in some measure within the first.
[1913 Webster]

2. One who, or that which, deviates from regularity; an
anomalous or irregular person or thing.
[1913 Webster]

3. (Astron.)
(a) In the Ptolemaic system, the supposed circular orbit
of a planet about the earth, but with the earth not in
its center.
(b) A circle described about the center of an elliptical
orbit, with half the major axis for radius. --Hutton.
[1913 Webster]

4. (Mach.) A disk or wheel so arranged upon a shaft that the
center of the wheel and that of the shaft do not coincide.
It is used for operating valves in steam engines, and for
other purposes. The motion derived is precisely that of a
crank having the same throw.
[1913 Webster]

Back eccentric, the eccentric that reverses or backs the
valve gear and the engine.

Fore eccentric, the eccentric that imparts a forward motion
to the valve gear and the engine.
[1913 Webster]
WordNet eccentric
adj 1: conspicuously or grossly unconventional or unusual;
"restaurants of bizarre design--one like a hat,
another like a rabbit"; "famed for his eccentric
spelling"; "a freakish combination of styles"; "his
off-the-wall antics"; "the outlandish clothes of
teenagers"; "outre and affected stage antics" [syn: bizarre,
freakish, freaky, flaky, off-the-wall, outlandish,
outre]
2: not having a common center; not concentric; "eccentric
circles" [syn: nonconcentric] [ant: concentric]
n 1: a person with an unusual or odd personality [syn: {eccentric
person}, flake, oddball, geek]
2: a person of a specified kind (usually with many
eccentricities); "a real character"; "a strange
character"; "a friendly eccentric"; "the capable type"; "a
mental case" [syn: character, type, case]
Moby Dictionary
aberrant , abnormal , absurd , adrift , afloat , alien , alternating ,
amorphous , amusing , anomalistic , anomalous , beezer , bizarre ,
bohemian , broken , capricious , careening , case , catchy , caution ,
changeable , changeful , character , choppy , coot , crackpot , crank ,
crankish , cranky , crotchety , curious , desultory , deviable , deviant ,
deviative , different , dippy , disconnected , discontinuous ,
dissenter , divergent , dizzy , dotty , droll , duck , erratic ,
exceptionable , exceptional , fanatic , fantastic , fast and loose ,
fey , fickle , fitful , flake , flaky , flickering , flighty , flitting ,
fluctuating , formless , freak , freaked out , freakish , freaky , funny ,
giddy , grotesque , guttering , halting , heretic , herky-jerky , hermit ,
heteroclite , heteromorphic , hilarious , hobo , humorous , idiocratic ,
idiosyncratic , immethodical , impetuous , impulsive , incongruous ,
inconsistent , inconstant , indecisive , infirm , intermittent ,
intermitting , irregular , irresolute , irresponsible , jerky , kinky ,
kook , kooky , laughable , lone wolf , loner , ludicrous , lurching ,
maggoty , maverick , mazy , mercurial , meshuggenah , moody , natural ,
nonconformist , nonuniform , nut , nutty , odd , odd fellow , oddball ,
oddity , off , off the wall , off-balance , off-center , original , out ,
outlandish , outsider , pariah , passing strange , patchy , peculiar ,
priceless , quaint , queer , queer duck , queer fish , queer specimen ,
quirky , quiz , quizzical , rambling , rara avis , recluse , restless ,
rich , ridiculous , risible , rough , roving , scatterbrained , scrappy ,
screaming , screwball , screwy , shapeless , shifting , shifty ,
shuffling , singular , snatchy , solitary , spasmatic , spasmic ,
spasmodic , spastic , spineless , spook , sporadic , spotty , staggering ,
strange , strange duck , stray , straying , subnormal , tramp , twisted ,
type , unaccountable , unbalanced , uncentered , uncertain ,
unconformist , uncontrolled , unconventional , undependable ,
undisciplined , unearthly , unequal , uneven , unfixed , unmethodical ,
unmetrical , unnatural , unpredictable , unregular , unreliable ,
unrestrained , unrhythmical , unsettled , unstable , unstable as water ,
unstaid , unsteadfast , unsteady , unsystematic , vacillating , vagrant ,
variable , veering , vicissitudinary , vicissitudinous , volatile ,
wacky , wandering , wanton , wavering , wavery , wavy , wayward , weird ,
weirdo , whimsical , wishy-washy , witty , wobbling , wobbly ,
wondrous strange , zealot , zombie


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