1.  postdoc(n = noun.possession) post doc, postdoctoral - a grant that funds postdoctoral study or research; Array
is a kind of grant-in-aid

2.  postdoc(n = noun.person) post doc - a scholar or researcher who is involved in academic study beyond the level of a doctoral degree; Array
is a kind of investigator, research worker, researcher, bookman, scholar, scholarly person, student