What's the difference between eccentric and elliptical?

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.

Elliptical


Definition:

  • (a.) Of or pertaining to an ellipse; having the form of an ellipse; oblong, with rounded ends.
  • (a.) Having a part omitted; as, an elliptical phrase.

Example Sentences:

  • (1) In this paper we present a robust algorithm to determine automatically contours with elliptical shapes.
  • (2) The results of the rapid-freeze and deep-etch procedure showed that the ridges observed by the surface replica method consisted of linear arrangements of elliptical particles on the ES face of the plasma membrane.
  • (3) The interaction with these lipids, the rotational conformations of the 17-acetyl group, and invertible conformations of the cyclohexenone of PROG were discussed on the basis of the elliptical strength of the Cotton effect and energy estimation of the preferred conformers.
  • (4) Similar aftereffects were obtained whether the area of the test stimulus was fixed or varied randomly from trial to trial, and whether the test stimulus was rectangular or elliptical.
  • (5) Raji consistently exhibited the highest and SU-AMB-1 the lowest polymerase activity and ellipticity.
  • (6) As univariate predictors, the variance of nuclear roundness, the mean of ellipticity, the Gleason score, age, and clinical stage were statistically significant predictors of disease progression when analyzed with Kaplan-Meier survival curves.
  • (7) The thermodynamics of this self-association have been evaluated by studying the temperature- and concentration-dependence of the mean residue ellipticity at 220 nm.
  • (8) In addition, it appears that the population of Elschnig type III nerve heads includes higher elliptical values than that for the Elschnig type II nerve heads.
  • (9) Protein unfolding was detected by ellipticity changes at 222 nm with increasing concentrations of guanidine hydrochloride (GdnHCl).
  • (10) Ontogenetic data on developmental stages I-IV of 3678 melanosomes based on geometric considerations (length, width, shape, and area) showed that MSH did not induce a complete transformation from spherical phaeomelanosomes to elliptical eumelanosomes.
  • (11) On 62 of 100 pediatric bladder sonograms a small, elliptical, hypoechoic structure was observed on the middle of the anterosuperior surface of the urinary bladder.
  • (12) The spatial extension of these megalospermatocyte populations is spherical to elliptical, some of them look like a section of a spiral around the longitudinal axis of the seminiferous tubule.
  • (13) In the case of the inclined model and a vertical beam the diffusion field was elliptical, with a still more diffuse transition to the fields above and below than in the case of the vertical model and a horizontal beam.
  • (14) CD measurements gave equal [theta] values for lysozyme and derivative at the two negative ellipticity bands at 208 and 220 nm.
  • (15) LH-RH nerve processes terminated mainly in the infurdibular radix within an elliptical zone surrounding the bases of the infundibular recessus.
  • (16) Similar, but far smaller, effects were seen in a region with an elliptical cross-section and when the flow was made pulsatile.
  • (17) The correlation showed the advantages of planning using optimal schemes in volumes with an elliptical and irregular section by the criteria of homogeneity of target contour irradiation, the lessening of radiation exposure beyond the target and an increase in the absolute value of minimum dose rate at the border of an irradiated volume.
  • (18) There was no positive ellipticity, and the spectrum was not characteristic of collagen.
  • (19) (b) Chemical input is received from unidentified presynaptic neurons containing either round or elliptical vesicles.
  • (20) The kinetics of regain of the native ellipticity in the far- and near-UV spectra have been investigated during the refolding at pH 7.8 and 20 degrees C of guanidine-unfolded, nonreduced hen egg white lysozyme.