Definition of eccentricity in English:

eccentricity

Line breaks: ec¦cen|tri¦city
Pronunciation: /ˌɛksɛnˈtrɪsɪti
 
/

noun (plural eccentricities)

[mass noun]
  • 2 technical Deviation of a curve or orbit from circularity.
    More example sentences
    • The eccentricity of the planetary orbits is small.
    • Because of the eccentricity of Mercury's orbit, the variation in the proper motion of the Sun would be noticeable to an observer on the planet.
    • Then, the extrasolar planets orbit much closer to their host stars and have a greater orbital eccentricity than the planets in our solar system.
  • 2.1 [count noun] A measure of the extent of deviation from circularity: Halley’s Comet has an eccentricity of about 0.9675
    More example sentences
    • Its orbit is the most nearly circular of that of any planet, with an eccentricity of less than 1 per cent.
    • Note that these angular sizes were calculated using the average eccentricity of the lunar orbit.
    • Note that these angular sizes were calculated using the average eccentricity of the lunar orbit.

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