con··e·nate (kŏn-kăt′n-āt′, kən-) tr.v. con··e·nat·ed, con··e·nat·ing, con··e·nates 1. To connect or link in a series or chain. 2. Computers To arrange (strings of characters) into a chained list. adj. (-nĭt, -nāt′) Connected or linked in a series. [Late Latin concatēnāre, concatēnāt- : com-, com- …