What's the difference between eccentric and erratic?

Eccentric


Definition:

  • (a.) 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.
  • (a.) 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.
  • (a.) Pertaining to an eccentric; as, the eccentric rod in a steam engine.
  • (a.) Not coincident as to motive or end.
  • (a.) 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.
  • (n.) A circle not having the same center as another contained in some measure within the first.
  • (n.) One who, or that which, deviates from regularity; an anomalous or irregular person or thing.
  • (n.) In the Ptolemaic system, the supposed circular orbit of a planet about the earth, but with the earth not in its center.
  • (n.) A circle described about the center of an elliptical orbit, with half the major axis for radius.
  • (n.) 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.

Example Sentences:

  • (1) Periosteal chondroma is an uncommon benign cartilagenous lesion, and its importance lies primarily in its characteristic radiographic and pathologic appearance which should be of assistance in the differential diagnosis of eccentric lesions of bones.
  • (2) Adaptation at 10 deg eccentricity yielded slightly higher threshold elevations than for central vision.
  • (3) An in vitro, eccentric arterial stenosis model was created using 15 canine carotid arteries cannulated with silicone plugs containing special pressure-transducing catheters designed to measure pressure directly, within the stenosis.
  • (4) • Gaddafi's many eccentricities, including phobias about flying over water and staying above ground floor level.
  • (5) These data suggest that older adults experience greater muscle damage following eccentric exercise than young subjects, which may be due in part to the smaller muscle mass and lower VO2max seen in older men.
  • (6) Detection thresholds at 10 Hz and high grating contrasts were approximately 11-15 arcsec in the fovea and 37-47 arcsec at 30 degrees eccentricity.
  • (7) It could be said that Brown's methods were not eccentric but merely attuned to the demands of Eighties and Nineties culture.
  • (8) That detail is inspired by the eccentric Mancunian performer Frank Sidebottom – the film is co-written by the Guardian's Jon Ronson , a former member of Sidebottom's band – but Abrahamson insists the character stands in for all music's outsiders.
  • (9) The relationships between dioptric blur, pupil size, retinal eccentricity, and retinal sensitivity were investigated in the central 5 degrees of the visual field in 10 normal subjects using the Humphrey Field Analyzer.
  • (10) Some say Film Socialism is an eccentric masterpiece ; others that it's an eccentric mess.
  • (11) The neoplastic cells have large, single eccentric nucleus, resembling typical plasma cells.
  • (12) Our threshold vs ISI data can be adequately modeled on the basis of an intrinsic positional uncertainty, which increases with eccentricity, and additive and multiplicative sources of noise.
  • (13) The latter 7 cases had either a dislocation or an eccentration.
  • (14) The term Asperger's Syndrome (AS) refers to a clinical picture characterized by social isolation in combination with odd and eccentric behaviour.
  • (15) With calcium antagonists, a similar extent of dilation of normal coronary arteries and eccentric stenoses can be obtained.
  • (16) The size and the angular tilt of the dark crescent appearing in the subject's pupil are derived as a function of five variables: the ametropia of the eye (Dsph, Dcyl, axis), the eccentricity of the flash, e, and the distance of the camera from the subject's eye, dc.
  • (17) Eccentric catheter location had little effect on phantom or human arterial lumen shape or area when imaging was performed with optimized catheters.
  • (18) Accommodative microfluctuations were found to play a minor role in determining the magnitude of sensitivity out to an eccentricity of 5 degrees; between 5 degrees and 27.5 degrees, the effect of microfluctuations was masked by the mydriasis produced by the drugs used in the study.
  • (19) A sport-specific profile of eccentric and concentric enlargement has been documented in endurance and resistance athletes, respectively.
  • (20) Although containing no obviously extreme items, its cumulative effect may be used to assess the prevalence of bizarre and eccentric thought patterns in psychiatric patients, and as an estimate of psychotic risk in the general population.

Erratic


Definition:

  • (a.) Having no certain course; roving about without a fixed destination; wandering; moving; -- hence, applied to the planets as distinguished from the fixed stars.
  • (a.) Deviating from a wise of the common course in opinion or conduct; eccentric; strange; queer; as, erratic conduct.
  • (a.) Irregular; changeable.
  • (n.) One who deviates from common and accepted opinions; one who is eccentric or preserve in his intellectual character.
  • (n.) A rogue.
  • (n.) Any stone or material that has been borne away from its original site by natural agencies; esp., a large block or fragment of rock; a bowlder.

Example Sentences:

  • (1) This erratic course renders difficult assessment of the efficacy of methods of treatment.
  • (2) As trigger sensitivity was decreased within its usual range, a marked and progressive ventilator response delay occurred which was associated with erratic changes in functional residual capacity as well as dyspnea and tachypnea.
  • (3) Obstacles to successful treatment include an erratic schedule, mistrust of authority, and uncooperative or aggressive behavior.
  • (4) In the wake of a second fatal police shooting in the St Louis area after the death of Michael Brown , concerned citizens are asking why officers had to kill Kajieme Powell, a 25-year-old man who was holding a knife and “behaving erratically.” They want to know why officers don’t shoot someone like Powell in the leg or the arm, rather than aiming for vital organs, or why they don’t just use a less lethal weapon, like a Taser.
  • (5) We attribute the persistence of infection in our patient to erratic usage of antituberculous drugs.
  • (6) Coronary blood flow and coronary perfusion pressure were significantly correlated during the administration of lignocaine; bupivacaine had erratic effects on coronary blood flow and no correlation between coronary blood flow and coronary perfusion pressure was seen.
  • (7) Flynn’s subsequent penchant for inflammatory, erratic and even bigoted statements left few, particularly in security circles, willing to defend him.
  • (8) The president of the European parliament, Martin Schulz, reflecting the deep anger felt in Brussels at the erratic negotiating tactics adopted by Tsipras and Varoufakis, said Greek voters should blame Tsipras for bringing the country to its knees.
  • (9) Cells in optimal (5 x 10(-9) M) but uniform concentrations of N-formyl-methionyl-leucyl-phenylalanine (FMLP) polarized well and showed a 'persistent random walk' type of locomotion, whereas in supraoptimal concentrations (10(-7) M), the cells took erratic paths and polarized poorly, suggesting that monocytes cannot develop an anteroposterior polarity if hit by ligand molecules at many points on the cell surface simultaneously.
  • (10) It is perhaps not surprising that self-diagnosis and self-medication are common and follow-up attendance is erratic.
  • (11) As far back as 2008, the Wall Street Journal was running front-page pieces , beginning: "Major banks are contributing to the erratic behaviour of a crucial global lending benchmark".
  • (12) The fact that it failed is related to the atomised society left behind by 40 years of the most brutal and erratic of dictatorships.
  • (13) At lower levels the results were somewhat more erratic due to inaccuracies of the various methods at low concentrations.
  • (14) At any rate, the only sparse range of body expressions, the smallness and preference of night activity of these animals and the erratic occurrence of essential behaviour patterns make the investigations more difficult.
  • (15) It has been encouraged by Trump’s often erratic, unfocused behaviour , and the resulting opportunities and dangers arising from weakened American global leadership.
  • (16) Though absorption of ampicillin from capsules was often erratic, its bioavailability was similar in normal and cirrhotic subjects.
  • (17) Moreover, the emotional climate of adolescence, which requires affiliation with peer groups, and a distancing from authority figures such as doctors and parents, is often associated with a deterioration in drug and dietary compliance and with erratic clinic attendance.
  • (18) I learned that the hard way: when I was younger, I played the part of the erratic, irascible drunk in order to have something to write about.
  • (19) Once well-paid, stable work with decent terms and conditions is gradually being replaced by minimum-wage, erratic jobs.
  • (20) Psychiatric patients may also be at special risk for the development of digitoxicity because of erratic drug taking, electrolyte imbalance or increased autonomic tone.