noun

• (education) Ellipsis of adjunct professor.
  "I've been given the chance to do this through my own department and through university programmes that don't have tenure-track lines and are therefore more likely to seek assistance from adjuncts."
• (brewing) An unmalted grain or grain product that supplements the main mash ingredient.
• (dated, metaphysics) A quality or property of the body or mind, whether natural or acquired, such as colour in the body or judgement in the mind.
• (music) A key or scale closely related to another as principal; a relative or attendant key.

verb

• (intransitive, informal) To work as an adjunct professor.
  "I also nannied through the first part of graduate school. I had friends who bartended or worked at a wine store and also adjuncted. A lot of people would package these jobs together."