exoskeleton

noun
1
a hard outer layer that protects the bodies of certain animals, such as insects
پوسته سخت بیرونی, اسکلت خارجی, پوسته سخت خارجی
compare endoskeleton
2
a machine attached to somebody's body to enable them to perform movements and actions more easily
اسکلت خارجی, اسکلت کمکی
Robotic exoskeletons add strength to healthy limbs and restore movement to weak ones.