1) Of atomic spatial arrangement 
of, like or pertaining to the organization of atoms in a molecule
Any effect that is caused simply by a chemical group physically getting in the way, rather than by any particular properties of that group, is called a steric effect. A good definition to keep in mind (Organic Chemistry, John McMurry , 1988) is that steric strain is the result of trying to force two objects to occupy the same space. Here is an inte...
Pertaining to stereochemistry. ... Steric hindrance, interference with or inhibition of a seemingly feasible reaction (usually synthetic) because the size of one or another reactant prevents approach to the required interatomic distance. ... (05 Mar 2000) ... 
Type: Term Pronunciation: ster′ik, stēr- Definitions: 1. Pertaining to stereochemistry.
of or pertaining to the spatial relationships of atoms in a molecule.