In uncountable|lang=en terms the difference between cylindricity and circularity
is that cylindricity is (uncountable) the quality of being cylindrical while circularity is (uncountable) the state of being circular.
In countable|lang=en terms the difference between cylindricity and circularity
is that cylindricity is (countable) a three-dimensional geometric tolerance that controls how much a feature can deviate from a perfect cylinder while circularity is (countable) a circular object, form or argument.
As nouns the difference between cylindricity and circularity
is that cylindricity is (uncountable) the quality of being cylindrical while circularity is (uncountable) the state of being circular.
cylindricity
English
Noun
(uncountable) The quality of being cylindrical.
(countable) A three-dimensional geometric tolerance that controls how much a feature can deviate from a perfect cylinder.
circularity
English
Noun
(uncountable) The state of being circular.
(countable) A circular object, form or argument.