Definitions

1. adjective

relating to the crurotarsal joint, a hinge joint in the ankle formed by the distal ends of the tibia and fibula and the proximal ends of the tarsal bones

“The researchers studied the anatomy of the crurotarsal joint in theropod dinosaurs.”

2. noun

a foot with a crurotarsal joint, especially in reptiles and early vertebrates

“The crurotarsal feet of the early vertebrates were well-adapted for walking and running.”