• (a.) Resembling a cord in toughness and flexibility, as the roots of some endogenous trees.
Fu·nil'i·form adjective [ Latin funis rope + -form .] (Botany) Resembling a cord in toughness and flexibility, as the roots of some endogenous trees. 
funiliform 1. Resembling a rope or cord. 2. Tough, cylindrical, and flexible, like a chord; as the roots of arborescent monocotyledones.