numeral

Short definition from Wiktionary

Noun

1. 1
   A symbol that is not a word and represents a number, such as the Arabic numerals 1, 2, 3 or the Roman numerals I, V, X, L.
2. 2
   A representation of a number composed of such symbols.
3. 3
   A number word, a simple or compound word for a number often having particular grammatical attributes depending on the language.
4. 4
   A card whose rank is a number (usually including the ace as 1).

Adjective

1. 1
   Of or relating to numbers; numerical.