Adjunct
/ˈædʒ.ʌŋkt/
noun
An appendage; something attached to something else in a subordinate capacity.
A person associated with another, usually in a subordinate position; a colleague.
An unmalted grain or grain product that supplements the main mash ingredient.
Synonyms: addition, supplement
adjective
Connected in a subordinate function.
Added to a faculty or staff in a secondary position.