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 tibia and fibula are the two bones making up the pelvic limb distal to the patella and femur and proximal to the tarsals and metatarsals the fibula is a very thin bone in comparison to the tibianote the tibial crest which is unique to the tibia and helps form the triangular shape of the bonehe tibia and fibula are the two bones making up the pelvic limb distal to the patella and femur and proximal to the tarsals and metatarsals the fibula is a very thin bone in comparison to the tibia