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.
Arden is used as both a boys and girls name. It consists of 5 letters and 2 syllables and is pronounced Ar-den. In the U.S. in 2014, it ranked 1056 in baby name popularity for girls with 243 occurrences. It ranked 1627 in popular baby names for boys with 94 occurrences.