``K``d is the dissociation constant, a specific type of equilibrium constant. KD may also refer to: ==Persons with the initials== ...
<abbreviation, chemistry> An equilibrium constant for dissociation. ... (14 Mar 2000) ... 
An abbreviation for 'knock down.'
An equilibrium constant for dissociation. Thus, for the reaction: A+B = C, at equilibrium Kd = (A)(B)/(C). Dimension: moles per litre in this case. Kd is the reciprocal of Ka. In general the concept of Kd is more readily understood than that of Ka; for example, in considering the conversion of A to C by the binding of ligand B, the Kd = B when A = C. Thus Kd is equal to the ligand concentration which produces half-maximal conversion (response).
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Type: Symbol Definitions: 1. Symbol for dissociation constant.
KD is an abbreviation for Kiln Dried
Partition ratio Soil partition coefficient
kiln-dried. · knocked-down.