Definitions for "Ligand"
A Lewis base that can coordinate to a metal atom.
In inorganic chemistry, a molecule or ion that binds to a metal cation to form a complex. In biochemistry, a molecule that binds to a receptor, having a biological effect.
Any molecule that binds to another; usually a soluble molecule such as a hormone or neurotransmitter that binds to a protein receptor.
an inherently flexible structure, and can assume a plethora of different conformations and orientations
a chemical in interstitial fluid, usually in a concentration lower than that in cells