The additiveness of the measure ensures that the measure of a disjoint union equals the sum of the measures of its parts.

The additive property of the function ensures that f(x + y) = f(x) + f(y) for all real numbers x and y.

The chemist carefully measured the amount of additive needed to improve the paint's durability.

The nutrition label listed several additives that I couldn't pronounce.

The chemist noted that the compounds interacted additively rather than synergistically during the reaction.

Despite their similar definitions, the additivities observed in different experiments exhibited subtle but important distinctions.

We charged the client for several additionals not listed in the initial quote.

If the part doesn't fit, please request an additional and we'll send it right away.

She finished her report on time, and in addition she prepared a presentation for the meeting.

The new additions to the curriculum included a coding module and extra laboratory time.