an elongated flexible animal part, usu on the head or around the mouth, used for feeling, grasping, etc
something resembling a tentacle in form or function; esp something that reaches out or spreads insidiously to grasp or control
a sensitive hair-like growth on a plant such as the sundew that can curve by growing asymmetrically
tentacled adj
tentacular /tenʹtakyoolə/ adj
[scientific Latin tentaculum, from Latin tentare to feel, touch, try]