adjunct
n. countablen. a person who helps in a job but is not a full member of the team. You often see this word for teachers who work part-time or on short contracts.
n. a person employed in a secondary, temporary, or non-permanent role, especially in higher education or law. In grammar, it refers to a word or phrase that adds extra information to a clause but is not essential to its structure.
She works as an adjunct professor at the university.
The law firm hired several adjunct lawyers to handle the sudden increase in cases.
While tenure-track faculty focus on research, adjunct instructors often carry the bulk of undergraduate teaching, providing essential instruction without the security of permanent employment.
From Latin adiunctus, perfect passive participle of adiungō (“join to”), from ad + iungō (“join”). Doublet of adjoint.