AMS Medical Abbreviation. The abbreviation is used for multiple medical conditions. Here are a few of them: AMS âAtypical Measles Syndrome.â â This happens when a person is immunized with the measles vaccine, but still gets a slight case of measles.
1. an extensive, continuous part of a surface, space, or body: a region of the earth. 2. Usu., regions. the vast or indefinite entirety of a space or area, or something compared to one: the regions of the mind.
A counterion (pronounced as two words, i.e. counter ion, and sometimes written as two words) is the ion that accompanies an ionic species in order to maintain electric neutrality. In table salt (NaCl), the sodium cation is the counterion for the chlorine anion and vice versa. In a charged transition metal complex, a (i.e. non-coordinated) ion accompanying the complex is termed the counterion. In the older literature, the term gegenion (from gegen which means counter in German) is sometimes used.