Hydrocephalus is a buildup of fluid inside the skull that leads to brain swelling. Hydrocephalus means water on the brain.
locant. (chemistry). The portion of a chemical name, usually a number or a letter, that designates the position of an atom or group of atoms in a formula unit. 1  Facebook. 2  Twitter.
the subdivision of chemistry dealing with the qualitative and quantitative determination of chemical components of substances. analytical chemistry, or the art of distinguishing different chemical substances, was rapidly developing, Phlogiston theory.