Of or pertaining to arithmetic in line with the rules or way of arithmetic
- concerning or involving arithmetic
- Of or related to arithmetic; in line with the rules or way of arithmetic.
1540s; see arithmetic + -al (1). Relevant: Arithmetically (late 15c.).
(a.) Of or with respect to arithmetic; based on the rules or way of arithmetic.
This ratio, invariably denoted by 7r, is constant for all circles, but it does not admit of exact arithmetical expression, being of the nature of an incommensurable number.