stereo-specificity

This term is a highly specialized technical descriptor used almost exclusively in organic chemistry and biochemistry. It describes a rigorous structural requirement where the spatial arrangement of atoms in the starting material dictates the spatial arrangement of the resulting product. It is distinct from stereoselectivity, which refers to the preference for one stereoisomer over another when multiple options are possible.

As a technical property, the term is treated as an uncountable noun. It describes a characteristic of a reaction or an enzyme rather than a discrete object that can be counted. In professional literature, it is typically paired with adjectives such as high, absolute, or complete to indicate the degree of precision in the chemical transformation.