(mathematical analysis) countable additivity

(mathematical analysis) Alternative form of σ-additivity

plural of additive operation

(mathematical analysis) The following property of a measure: that the measure of a countable union of disjoint sets is equal to the sum of their measures.

Alternative spelling of addition polymerization

(chemistry) A form of polymerization in which copies of a monomer are repeatedly added to one end of an existing polymer

(group theory) Any (often, but not necessarily, abelian) group whose binary operation is called addition.

(algebra) An element of an algebraic structure, generally denoted 0, which is an identity for an additive operation (generally denoted +). That is, x + 0 = 0 + x = x for any x in the structure.

(mathematics) An operation, written using the symbol +, that produces the sum of two operands

Any non-food substance added to food in order to improve its flavour, appearance or shelf life