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.
Chert is a very hard material that produces a spark when it is struck against steel. The heat from this spark can be used to start fires. A flintlock is an early firearm in which a charge of gunpowder is ignited by a flint hammer striking a metal plate (see photo).