eccentric

Definition of eccentric in English English dictionary: against or in the opposite direction of contraction of a muscle. (E.g. flexion of the lower arm (bending of the elbow joint) by an external force while contracting the triceps and other elbow extensor muscles to control that movement; opening of the jaw while flexing the masseter)
Antonym: concentric. Both concentric and eccentric are collectively referred to as isotonic, the antonym of which is isometric.; A disk or wheel with its axis off centre, giving a reciprocating motion; not perfectly circular
an eccentric or elliptical orbit.; A kook; of a person, deviating from the norm; behaving unexpectedly or differently
The recluse has become really eccentric over the years..; not at or in the centre; One who does not behave like others; having a different center; peculiar; {a} deviating from the center, irregular; Not coincident as to motive or end; The motion derived is precisely that of a crank having the same throw; not having a common center; not concentric; "eccentric circles"; a circular wheel with an off-centre axle; Not having the same center; a person with an unusual or odd personality not having a common center; not concentric; "eccentric circles; a term used to describe modular cubes in which the pattern on every face is different from the pattern on every other face; [1] Two circles, one within the other, neither sharing the same center, i e , they are off-center; {i} strange, odd, queer, unconventional; A disk or wheel so arranged upon a shaft that the center of the wheel and that of the shaft do not coincide; 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"; A speleothem of abnormal shape or attitude cf Helictite Cave - Depositional Features Ref JJ; In the Ptolemaic system, the supposed circular orbit of a planet about the earth, but with the earth not in its center; character: 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"; Noncircular; elliptical (applied to an orbit); {s} strange, unusual, odd; If something is eccentric, it is strange or different In the case of orbits, eccentric means the orbit is "out of round" or oval, instead of being a perfect circle; If you say that someone is eccentric, you mean that they behave in a strange way, and have habits or opinions that are different from those of most people. He is an eccentric character who likes wearing a beret and dark glasses. = odd An eccentric is an eccentric person. On first impressions it would be easy to dismiss Duke as an eccentric. + eccentrically ec·cen·tri·cal·ly painters, eccentrically dressed and already half drunk. someone who behaves in a way that is different from what is usual or socially accepted; Deviating from the norm; behaving unexpectedly or differently; One or more circles within each other not having the same centre point; The off-center position of the Earth in the presumed circular orbits of the sun, moon, and planets in early geocentric models; an eccentric circle is a circle that is not centred on the Earth; 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); deviating from a circular form or path, as in an elliptical orbit; Non-circular; elliptical - applied to an orbit; 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"; A form of crank in which a circular disc set eccentrically upon a shaft forms at once the crank web and crank pin Eccentrics are usually made of cast steel or iron and if large are lightened to save weight They are made in two parts connected by tap bolts and keyed to the crank shaft Eccentrics are utilized to convert circular to rectilinear motion The rectilinear travel is usually short relative to the diameter of the crank shaft so the ordinary form of crank is impracticable; The general term "eccentric" refers to two circles whose center is not at the same point The primary bicycle usage refers to the special bottom brackets used on better tandems and some other cycles, which allows the bottom bracket to be moved slightly for purposes of fine-tuning chain length A tandem synch chain runs between two bottom brackets, and the front bottom bracket is usually mounted in an eccentric This is a cylindrical part with a large hole running parallel to its axis This hole is sized and threaded to accept a normal bottom bracket assembly The cylinder mounts into an oversized shell located where a normal bottom bracket would be The outer shell may use pinch bolts or setscrews to secure the moveable eccentric cylinder in position Some eccentrics use a wedge bolt system, similar to that of a handlebar stem, so secure the cylinder For more details on this, see my article on Adjusting Tandem Synch Chains; which, though coinciding, either in whole or in part, as to area or volume, have not the same center; opposed to concentric; One who, or that which, deviates from regularity; an anomalous or irregular person or thing; An off-center circular path; Pertaining to an eccentric; as, the eccentric rod in a steam engine; A disc eccentrically secured onto an axle Used to produce reciprocating (move backwards and forwards in a straight line) movement; Controlled, active lengthening contraction of a muscle; A circle not having the same center as another contained in some measure within the first; 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; not circular; elliptical See also ellipse; {i} strange or unusual person, odd character; Not in the center; bizarre: 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"; mentally ill; also, patronizing; 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; The condition that exists when a load is applied on a line of action that does not pass through the centroid of the body it is applied to; A circle described about the center of an elliptical orbit, with half the major axis for radius; It is used for operating valves in steam engines, and for other purposes; Not having the same center; said of circles, ellipses, spheres, etc; a person with an unusual or odd personality; A circle or disk mounted off center Eccentrics are used to adjust controls and connect compressor driveshafts to pistons; Eccentric refers to a muscle movement causing a lengthening of the muscle; movement of a muscle away from the body; spacy; squirrelly
eccentric contraction: The tensioning of a muscle as it is being lengthened
eccentric contractions: plural form of eccentric contraction
eccentric and rod mechanism: Arrangement of mechanical parts used to obtain a reciprocating straight-line motion from a rotating shaft. It serves the same purpose as a slider-crank mechanism and is particularly useful when the required stroke of the reciprocating motion is small in comparison with the dimensions of the driving shaft. Because an eccentric can be attached anywhere along a shaft, it is unnecessary to form any part of the shaft into a crank. Eccentrics are seldom used to transmit large forces because friction loss would be high; they are commonly used to drive the valve gears of engines
Eccentric.: round the twist
eccentrically: in an eccentric manner
eccentrically: exceptionally, unusually, strangely, irregularly
eccentrics: plural of eccentric; persons who have unusual tendancies

eccentric

Hyphenation

ec·cen·tric

Turkish pronunciation

îksentrîk

Synonyms

eccentrical, excentrical, odd, aberrant, abnormal, anomalous, beat, bent, bizarre, capricious, characteristic, cockeyed, crazy, curious, droll

Antonyms

boring, common, dull, normal, ordinary, plain, regular, standard, unexciting, usual

Pronunciation

/əkˈsentrək/ /ɪkˈsɛntrɪk/

Etymology

() From Latin eccentricus from Ancient Greek ἔκκεντρος (ekkentros, “not having the earth as the center of an orbit”) from ἐκ (ek, “out”) + κέντρον (kentron, “point”)

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