Definitions

1. adjective

relating to or resembling an articulation or joint

“The arthrous bones in the human body enable us to move with flexibility.”

2. adjective

joined or united by a joint or articulation

“The arthrous segments of the insect’s body allow it to move efficiently.”

3. noun

a joint or articulation, especially in an insect or other arthropod

“The arthroses in the insect’s exoskeleton enable it to flex its body.”