ductile - Dictionary definition and meaning for word ductile
Imagine a metal rod. If this rod containing a duct (a small tunnel) it will be more flexible (ductile)
Relate with Reptile (Snake) which can make itself coiled because of its flexibility to bend.
duct(MEANS PULL)....so something which is esily pulled into ANY SHAPE is DUCTILE.
Duct tapes are flexible.