re·dun·ca \rə̇ˈdəŋkə\noun Usage: capitalized Etymology: New Latin, from Latin, feminine of reduncus bent backward, from red- re- + uncus bent, curved; akin to Latin uncus hook — more at angle : a genus of antelopes consisting of the reedbucks • re·dun·cine\-dən(t)ˌsīn\adjective