1. Something attached to another in a dependent or subordinate position. See synonyms at appendage. 2. A person associated with another in a subordinate or auxiliary capacity. 3.Grammar A clause or phrase added to a sentence that, while not essential to the sentence's structure, amplifies its meaning, such as for several hours in We waited for several hours.4.Logic A nonessential attribute of a thing.
ADJECTIVE:
1. Added or connected in a subordinate or auxiliary capacity: an adjunct clause.2. Attached to a faculty or staff in a temporary or auxiliary capacity: an adjunct professor of history.
ETYMOLOGY:
From Latin adinctus, past participle of adiungere, to join to. See adjoin.