it is also the lightest element isotopes are atoms of the same element with different numbers of neutrons in ancient times the elements referred to fire earth water and air helium is the second most common element in the universe but is very rare on the earth
Featherweight is a weight class in the combat sports of boxing, kickboxing, mixed martial arts and Greco-Roman wrestling.
Definition of horse for English Language Learners. : 1  a large animal that is used for riding and for carrying and pulling things. : 2  a frame used to support a piece of wood while it is being cut with a saw. : 3  a large piece of equipment used in gymnastics.