from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the number of arguments that a function can take
From -ary, based on a Latin root. Compare adicity and adinity, based on the corresponding Greek root. (Wiktionary)