Skip to main content
sphericity

sphericity

1 8.2
How closely something looks like a ball
  • noun
  • /sfɛrˈɪsɪti/
  • Specialized
translation icon : esfericidad
  • The scientist measured the sphericity of the particles to determine their suitability for the experiment.
  • sphericity test
  • sphericity assumption
  • violation of sphericity

Examples

  • A Mauchly sphericity test supported assumptions of homogeneity of variance.

    Academic text (1997)
  • The sphericity assumption was not met, so the Huynh-Feldt correction was applied.

    Academic text (2004)
  • The Geisser-Greenhouse correction was employed in order to test for violations of the sphericity assumption.

    Academic text (1991)
  • First, in order to find out whether the scale is suitable for factor analysis, a KMO and Bartlett's test of sphericity was conducted.

    Academic text (2010)
  • The assumption of sphericity was violated; thus, we used the Greenhouse-Geisser correction to identify significant group differences.

    Academic text (2014)
  • Bartlett's tests for sphericity confirmed that multivariate analyses were appropriate in each case.

    Academic text (2003)
  • When Mauchly's test indicated a violation of the assumption of sphericity, degrees of freedom were adjusted using the Greenhouse-Geisser correction.

    Academic text (2018)
  • Without ever recognizing the sphericity of the earth, they had grasped enough knowledge of celestial mechanics to enable them to predict eclipses.

    Academic text (1992)
  • Consequently, degrees of freedom were corrected using Huynh-Feldt estimates of sphericity (e = 0.895).

    Academic text (2010)
  • Mauchly's test indicated that the assumption of sphericity was violated (χ² = 42.982, df = 14, p = .001).

    Academic text (2010)

Synonyms

roundness
vssphericity
4 2.6

A shape with smooth curves and no sharp angles

is specific to how much an object resembles a three dimensional ball
sphericalness
vssphericity
8.0

A state of being round like a ball

is the same meaning but differs only in word form and ending
globosity
vssphericity
9.9

A round shape like a ball or fruit

is stricter, measuring closeness to an exact ball shape
globularness
vssphericity
9.3

The round shape of something like a ball

is more about exact closeness to an ideal ball shape than general roundedness
rotundity
vssphericity
8.7

The state of being round and full like a ball or planet

is concerned with how closely an object matches an ideal ball form
rotundness
vssphericity
7.7

A shape that is round all around, like a ball or apple

is about exact ball likeness rather than general plump roundness

How Spherical

sphericity
  • Specialized
1 8.2
roundness
4 2.6
ovality
7.7
flatness
3 2.9

Surface Forms

sphericity singular
sphericities plural

Morphology

sphericity = spheric (transparent) = spheric + ity

Formed from the adjective 'spheric' plus the productive nominalizing suffix '-ity', so the meaning 'the quality of being spherical' is directly derivable.

Etymology

Sphericity comes from the old Greek word sphaira, meaning 'ball', and it is the same root as the familiar words sphere and spherical. So sphericity is simply how much something is like a ball or how 'round' it is.