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.
Â¾Polymers â materials consisting of polymer molecules. that consist of repeated chemical units (`mers') joined. together, like beads on a string. Some polymer. molecules contain hundreds or thousands of monomers. and are often called macromolecules. Â¾Polymers may be natural, such as leather, rubber,