WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a grant that funds postdoctoral study or research
n. a scholar or researcher who is involved in academic study beyond the level of a doctoral degree
Word Usage
"In case you are wondering, postdoc is short for “post-doctoral researcher”, which means that you have a doctorate, but are still working under a more senior scientist or academic, usually a professor at a research institution."