What does KB mean in chemistry?

In chemistry, ( K_b ) refers to the base dissociation constant, which quantifies the strength of a base in solution. It measures the extent to which a base ionizes in water to produce hydroxide ions (OH⁻) and its conjugate acid. A higher ( K_b ) value indicates a stronger base, as it signifies a greater degree of ionization. This constant is particularly useful for comparing the strengths of different bases.