As nouns the difference between roundness and ovality
is that roundness is the quality of being round while ovality is a measurement of deviation from circularity of an oval or approximately elliptical shape.
roundness
English
Noun
(en-noun)
The quality of being round.
ovality
English
Noun
(
wikipedia ovality)
(
ovalities)
(engineering) a measurement of deviation from circularity of an oval or approximately elliptical shape.
See also
* eccentricity