Pertaining to number; consisting of numbers.Expressing number; representing number: as, numeral letters or characters, such as V or 5 for five.Synonyms Numeral, Numerical. Numeral is more concrete than numerical: as, numeral adjectives or letters; numerical value, difference, equality, or equations.n. One of the series of words used in counting; a cardinal number.n. A figure or character used to express a number: as, the Arabic numerals, 1, 2, 3, etc., or the Roman numerals, I, V, X, L, C, D, M.n. In grammar, a word expressing a number or some relation of a number.n. In musical notation:n. An Arabic or Roman figure indicating a tone of the scale, as 1 for the tonic or do, 2 for re, 3 for mi, etc.n. One of the figures used in thorough-bass, by which the constitution of a chord is indicated with reference to the bass tone or to the key-chord.n. In the Anglo-Saxon Ch., a calendar or directory telling the variations in the canonical hours and the mass caused by saints' days and festivals.