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.
A tibia/fibula (tib/fib) fracture is a common fracture of the ankle bones. The tibia (shin bone) and fibula (bone on the outside part of your ankle) are located in the lower leg and help form part of your ankle joint. Occasionally, just one of the bones, either the tibia or fibula, is broken. If you have suffered a tib/fib fracture, you may require surgery.