Ammonium cation: The cation of molecular formula NH 4 + (i.e., the conjugate acid of ammonia). Can also refer to any cation in which nitrogen has four single bonds and a positive formal charge, such as the tetra methyl ammonium cation.
Arden /ar-den/ [2 sylls.] as a girls' name (also used as boys' name Arden) is pronounced AR-den. It is of Latin origin, and the meaning of Arden is great forest. Literary: the Forest of Arden in Shakespeare's As You Like It was a magically beautiful place.
Primarily in Belgium and Luxembourg, but stretching into Germany and France (lending its name to the Ardennes department and the former Champagne-Ardenne region), and geologically into the Eifelâthe eastern extension of the Ardennes Forest into Bitburg-PrÃ¼m, Germany, most of the Ardennes proper consists of southeastern Wallonia, the southern and ...