A thing added to something else as a supplementary rather than an essential part. The course was an adjunct to the main curriculum.
A person who is an assistant or subordinate to another. She worked as an adjunct professor at the university.
A word or phrase used to amplify or modify the meaning of another word or words in a sentence. In the sentence 'She sang beautifully,' the word 'beautifully' is an adjunct.
In brewing, an unmalted grain or other fermentable material added to the mash to supplement the main ingredients. Some large breweries use corn as an adjunct to reduce costs and produce a lighter-tasting beer.