cur·so·ri·al \|kər|sōrēəl\adjective Etymology: Late Latin cursorius of running + English -al 1.: adapted to running < cursorial insects > : having limbs adapted to running and not to prehension < a cursorial horse > — opposed to fossorial 2. a.[New Latin Cursores + English -ial]: of or relating to the Cursores b.[New Latin Cursoria + English -al]: of or relating to the Cursoria