In an additive manner.

(uncountable) The property of being additive / (countable) The extent to which something is additive

plural of additivity

(mathematics, nonstandard) additivity

(chemistry) a reaction in which radicals are added to both sides of a double or triple bond

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

Alternative spelling of addition polymerization

(music) The practice of enlarging and revising the orchestration of an earlier work, usually a Baroque piece, to accommodate the larger contemporary orchestras and tastes of the time.

(chemistry) A calibration technique for quantification that involves adding known amounts of a substance to an aliquot of an analyte.

plural of addition reaction