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.
An astringent (occasional alternative: adstringent) substance is a chemical compound that tends to shrink or constrict body tissues. The word astringent derives from Latin adstringere, meaning to bind fast. Two common examples are calamine lotion and witch hazel.