Holding an auxiliary position; subordinate.(adjective)
Giving aid; auxiliary.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "assistant" in a sentence
"She is currently a term assistant professor of psychology at Barnard College and continues to research dog behavior."
"The author of "Inside of a Dog: What Dogs See, Smell and Know" and a term assistant professor of psychology at Barnard College."
"Lightman's main assistant is the ever-cheerful Gillian Foster (Williams), whose strength is figuring out why people lie."