The story
From spheric + -ity. In the geometrical sense, defined by the geologist Hakon Wadell in 1935.
Etymology from Wiktionary, CC BY-SA 4.0.
sphericity
Today it means: The quality of being spherical, being a sphere. Full definition →
Today it means: The quality of being spherical, being a sphere. Full definition →
From spheric + -ity. In the geometrical sense, defined by the geologist Hakon Wadell in 1935.
Etymology from Wiktionary, CC BY-SA 4.0.