a threadlike, leafless organ of climbing plants, often growing in spiral form, which attaches itself to or twines round some other body, so as to support the plant.
Origin: 1530–40; earlier tendrel, var. (perh. by dissimilation) of ME tendren, tendron < MF tendron shoot, sprout, cartilage
1538, from M.Fr. tendrillon "bud, shoot, cartilage," perhaps a dim. of tendron "cartilage," from O.Fr. tendre "soft" (see tender (adj.)), or else from L. tendere "to stretch, extend" (see tender (v.)).