n. pl. locÂ·ules or locÂ·uÂ·li (-lÄ«â²). A small cavity or compartment within an organ or part of an animal or plant, as any of the cavities within a plant ovary. [Latin.
Competitive inhibition is a form of enzyme inhibition where binding of the inhibitor to the active site on the enzyme prevents binding of the substrate and vice versa. Most competitive inhibitors function by binding reversibly to the active site of the enzyme.
Enzyme inhibitor, a substance that binds to an enzyme and decreases the enzyme's activity. Reuptake inhibitor, a substance that increases neurotransmission by blocking the reuptake of a neurotransmitter. Lateral inhibition, a neural mechanism that increases contrast between active and (neighbouring) inactive neurons.