Definitions

1. noun

A negatively charged ion, especially one formed by the gain of one or more electrons by a neutral atom or molecule.

“The anion is the negatively charged component of an electrolyte solution.”

2. chemistry

In chemistry, an ion that has gained one or more electrons, resulting in a net negative charge.

“The anion was formed when the neutral atom gained an electron.”

3. biology

In biology, an anion refers to a negatively charged molecule or ion that plays a crucial role in various biological processes.

“The anion helps to maintain the pH balance in the cell.”