1 Hydrogen is the most abundant element in the universe. 2  Hydrogen isn't common in a pure form on Earth, but is mostly found as part of water. 3  Hydrogen is the main fuel of stars and the only fuel for red dwarfs. 4  The whole universe is thought to have been formed by a Hydrogen nucleus.
Noun. 1. hindlimb-a posterior appendage such as a leg or the homologous structure in other animals. hind limb. hind leg-the back limb of a quadruped. limb-one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper. 1  Facebook.
The back of your foot (hindfoot) is made up of your heel bone (calcaneus) and your ankle (talus). Theyâre joined together by your subtalar joint, which allows your foot to move from side to side. Your ankle bone is joined to your leg bones (tibia and fibula) at your ankle joint, which acts like a hinge.This allows your foot to bend up and down. The middle of your foot (midfoot) is made up of five tarsal bones.heyâre joined together by your subtalar joint, which allows your foot to move from side to side. Your ankle bone is joined to your leg bones (tibia and fibula) at your ankle joint, which acts like a hinge. This allows your foot to bend up and down. The middle of your foot (midfoot) is made up of five tarsal bones.