tears. pl n. 1. (Physiology) the clear salty solution secreted by the lacrimal glands that lubricates and cleanses the surface of the eyeball and inner surface of the eyelids. 2. a state of intense frustration (esp in the phrase bored to tears). 3. in tears weeping.
Nuclear power is energy which is produced with the use of a controlled nuclear reaction. Many nations use nuclear power plants to generate electricity for both civilian and military use, and some nations also utilize this type of energy to run parts of their naval fleets, especially submarines.
Nuclear fusion is where the energy is released when the nucleus of the atoms are combined or fused together to form a large atom. This type of energy production is part of the future because of the cost of hydrogen power plants. The sun produces this type of energy. Nuclear fission is the splitting of atoms to form smaller atoms, releasing energy. Nuclear power plants use this type of nonrewable energy to produce energy by splitting atoms that are easily split like uranium.