1. Something attached to or joined to something else in a dependent or subordinate position: Mild exercise can be used as an adjunct to healing muscle pain along with medication.

The internet can be used as an adjunct to textbook and classroom learning.

2. A person associated with someone in a subordinate or auxiliary capacity: Harvey was serving as an adjunct teacher in the high school until a fully qualified teacher arrived.
3. A phrase or word which provides additional information about the meaning of a verb in a sentence that, while it is not essential to the structure of the sentence, it increases its meaning by adding time, place, manner, etc.: The phrase "for more than thirty minutes" is an adjunct, as in "Tami and Shane had to wait for more than thirty minutes before the bus finally arrived."

1. Added or joined to another thing so it can be used with it: "Clyde had a massage as an adjunct treatment of his sore shoulder."
2. Attached to a faculty or staff in a temporary or auxiliary capacity of an educational institution: "Roberto was an adjunct professor of biology at the local college."