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1. Something attached to another in a dependent or subordinate position. See Synonyms at attachment.
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.
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.
[From Latin adiūnctus, past participle of adiungere, to join to; see adjoin.]
ad·junc′tion (ə-jŭngk′shən) n.
(Grammar) (in phrase-structure grammar) the relationship between a branch of a tree representing a sentence to other branches to its left or right that descend from the same node immediately above