articulated joint

noun
  1. Anatomy. a flexible joint.
  2. an artificial appendage, limb, or the like, especially one activated and controlled by a computer, as the mechanical arm of a robot.
  3. a device by which two or more sections of a vehicle are linked together so as to allow greater capacity, flexibility of movement, etc.

Origin of articulated joint

First recorded in 1955–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018