AskDefine | Define eccentricity

Dictionary Definition



1 strange and unconventional behavior
2 (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis; "a circle is an ellipse with zero eccentricity"
3 a circularity that has a different center or deviates from a circular path [ant: concentricity]

User Contributed Dictionary



From Greek εκκεντρικός ekkentrikos, from εκ- ek "from" + κεντρικός kentrikos "of the center, central"


  1. The quality of being eccentric; any eccentric behaviour.
  2. The ratio, constant for any particular conic section, of the distance of a point from the focus to its distance from the directrix


the quality of being eccentric
eccentric behaviour
a ratio between distances in a conic section

Extensive Definition

Eccentricity may refer to:
eccentricity in Tosk Albanian: Exzentrizität
eccentricity in Danish: Excentricitet
eccentricity in German: Exzentrizität
eccentricity in French: Excentricité
eccentricity in Italian: Eccentricità
eccentricity in Hebrew: אקסצנטריות
eccentricity in Dutch: Excentriek
eccentricity in Low German: Exzentrizität (Mehrdüdig Begreep)
eccentricity in Portuguese: Excentricidade
eccentricity in Romanian: Excentricitate
eccentricity in Thai: ความเยื้องศูนย์กลาง
eccentricity in Turkish: Dışmerkezlik

Synonyms, Antonyms and Related Words

aberrance, aberrancy, aberration, abnormality, abnormity, absurdity, absurdness, amorphism, animus, anomalism, anomalousness, anomaly, aptitude, arrhythmia, asininity, battiness, bent, bias, bizarreness, bizarrerie, brainlessness, brokenness, buffoonery, capriciousness, cast, character, choppiness, clownishness, constitution, crackpottedness, crankiness, craziness, daffiness, derangement, desipience, desultoriness, deviability, deviation, diathesis, difference, disconnectedness, discontinuity, disposition, divergence, drollery, drollness, erraticism, erraticness, fatuity, fatuousness, fibrillation, fickleness, fitfulness, fits and starts, flightiness, fluctuation, folly, foolery, foolheadedness, foolishness, freakishness, frivolity, frivolousness, funniness, giddiness, goofiness, grain, heteromorphism, hilarity, humorousness, idiocy, idiosyncrasy, imbecility, impulsiveness, inanity, inclination, incongruity, inconsistency, inconstancy, individualism, ineptitude, inferiority, insanity, instability, intermittence, irregularity, jerkiness, kidney, laughability, leaning, ludicrousness, lunacy, madness, make, makeup, mental set, mercuriality, mettle, mind, mind-set, mindlessness, mold, monstrosity, moodiness, nature, niaiserie, nonuniformity, nugacity, nuttiness, patchiness, predilection, predisposition, preference, pricelessness, proclivity, propensity, quaintness, queerness, quizzicalness, restlessness, richness, ridiculousness, roughness, sappiness, screwiness, senselessness, set, shiftiness, silliness, slant, spasticity, sporadicity, sporadicness, spottiness, stagger, stamp, strain, streak, stripe, stupidity, subnormality, superiority, temper, temperament, tendency, teratism, the funny side, thoughtlessness, triflingness, triviality, turn, turn of mind, twist, type, uncertainty, undependability, unevenness, unfixedness, unmethodicalness, unnaturalism, unnaturalness, unpredictability, unreliability, unsettledness, unstableness, unsteadfastness, unsteadiness, unsystematicness, variability, variation, variety, wackiness, wantonness, warp, waywardness, weirdness, whimsicality, whimsicalness, witlessness, wittiness, wobble, zaniness, zanyism
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