OTL is a stick figure of a person on all fours. O= head, T = arms on the ground, and L = legs. The lowercase form is orz. This emoticon can be used interchangeably with *worship* which simply means that you are grateful to whomever you present the emoticon to.
exists and is an alternate of . Nuclear fusion is a nuclear reaction, not a chemical reaction. In nuclear fusion, the nuclei of atoms combine in order to form new atoms (hence the term nuclear reaction). This type of reaction is mainly concerned with the movement of protons and neutrons.
Nuclear fusion refers to the union of atomic nuclei to form heavier nuclei resulting in the release of enormous amounts of energy (Merriam-Webster Online, www.m-w.com). Fusion takes place when two low-mass isotopes, typically isotopes of hydrogen, unite under conditions of extreme pressure and temperature.