additive

1 of 2

adjective

ad·​di·​tive ˈa-də-tiv How to pronounce additive (audio)
1
: of, relating to, or characterized by addition
an additive process
2
: produced by addition
3
: characterized by, being, or producing effects (such as drug responses or gene products) that when the causative factors act together are the sum of their individual effects
additively adverb
additivity noun

additive

2 of 2

noun

: a substance added to another in relatively small amounts to effect a desired change in properties
food additives

Examples of additive in a Sentence

Adjective certain drugs have additive effects when taken in conjunction with each other that one doesn't see when any one is used alone Noun a gasoline additive to reduce pollution
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Red 2 remains a legal food additive in many other countries, including Canada. Stephan Pechdimaldji, Newsweek, 13 Dec. 2024 What to know: It's been more than a decade since regulators have evaluated the safety of the additive known as red dye No. 3, an artificial dye that gives a cherry-red coloring to thousands of products. Laura L. Davis, USA TODAY, 9 Dec. 2024
Noun
Contain artificial flavoring and additives: Some vitamins and minerals, like iron, zinc, and B vitamins, have a metallic taste. Lana Barhum, Verywell Health, 16 Dec. 2024 What is red dye 40? FD&C Red No. 40, or Red 40 for short, is the FDA's name to refer to a color additive first registered with the agency in the 1970s. Alexander Tin, CBS News, 13 Dec. 2024 See all Example Sentences for additive 

Word History

Etymology

Adjective

borrowed from Late Latin additīvus, from Latin additus (past participle of addere "to add") + -īvus -ive

Noun

derivative of additive entry 1

First Known Use

Adjective

1648, in the meaning defined at sense 1

Noun

1901, in the meaning defined above

Time Traveler
The first known use of additive was in 1648

Dictionary Entries Near additive

Cite this Entry

“Additive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/additive. Accessed 26 Dec. 2024.

Kids Definition

additive

1 of 2 adjective
ad·​di·​tive ˈad-ət-iv How to pronounce additive (audio)
: relating to or produced by addition
additively adverb

additive

2 of 2 noun
: a substance added to another in small amounts to give or improve desirable qualities or decrease unwanted qualities
a gasoline additive
additives which color, flavor, or preserve food

Medical Definition

additive

1 of 2 adjective
ad·​di·​tive ˈad-ət-iv How to pronounce additive (audio)
: having or relating to a value or effect that is the sum of individual values or effects: as
a
: relating to the sum of the pharmacological responses produced by the concurrent administration of two or more drugs capable of producing the same kind of effect
b
: having a genetic effect that is the sum of the individual effects
additively adverb
additivity noun
plural additivities

additive

2 of 2 noun
: a substance added to another in relatively small amounts to effect a desired change in properties
especially : an agent added to a foodstuff to improve color, flavor, texture, or keeping qualities

More from Merriam-Webster on additive

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!