Sphericity

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The quality of being spherical, being a sphere. uncountable
  2. 2
    the roundness of a 3-dimensional object wordnet
  3. 3
    The ratio of the surface area of a given particle to the surface area of a sphere with the same volume. countable

Synonyms

All synonyms
sphericalnessbellyconvexityglobosityglobularnessorbicularity

Example

More examples

"On his return to Greece he founded the Ionian school, and taught the sphericity of the Earth, the obliquity of the ecliptic, and the true causes of eclipses of the Sun and Moon."

Etymology

From spheric + -ity. In the geometrical sense, defined by the geologist Hakon Wadell in 1935.

Related phrases

surface area

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.