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.
Etymology: Gk, polys + meros, part. a compound formed by combining or linking a number of monomers, or small molecules. A polymer may be composed of many units of more than one type of monomer (a copolymer) or of many units of the same monomer (a homopolymer).