Noun: cardinal number
- The number of elements in a mathematical set; denotes a quantity but not the order
"The cardinal number of the set {apple, banana, cherry} is 3";
- cardinal
- (grammar) A word that expresses a countable quantity
"cardinal numbers expressing numbers below 100 are single words, while those expressing higher numbers are syntactically composite.";
- cardinal numeral
Derived forms: cardinal numbers
Encyclopedia: Cardinal number