(mathematics, number theory) The branch of number theory in which number-theoretic questions are expressed in terms of properties of algebraic number fields or related objects, and studied using techniques from algebra.

A small marsupial carnivore, Myrmecobius fasciatus, endemic to western Australia, that eats almost exclusively termites.

(archaic) third-person singular simple present indicative form of number

(Canada) A nine-digit number issued by the government of Canada to citizens, permanent residents, and some categories of temporary residents, for official identification in the provision of government services and income taxation. Abbreviation: SIN.

(statistics) The statistical tendency toward a fixed ratio in the results when an experiment is repeated a large number of times; law of averages.

(number theory) An element of a completion of the field of rational numbers with respect to a p-adic ultrametric.

plural of numbat

(mathematics) A repetitive Fibonacci-like integer which appears in a linear recurrence relation.

plural of repfigit number

plural of Keith number