additive.

1. Combining effects through addition rather than mutual multiplication or interaction.

2. A substance added to a product to alter its properties.

Use it for

Words that belong together

• additive effect
• additive model

On the page

The model assumes that the two effects are additive.

Usage notes

Primary category: academic / formal. Forms: Normally non-gradable; no ordinary comparative or superlative.. Noun singular additive; plural additives. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: analysis, evaluation. Commonness: moderately common.