ster·e·o·i·som·er·ism 
(stĕr′ē-ō-ī-sŏmə-rĭz′əm, stîr′-)
(stĕr′ē-ō-ī-sŏmə-rĭz′əm, stîr′-)n.
Isomerism created by differences in the spatial arrangement of atoms in a molecule.
ster′e·o·i′so·meric (-ī′sə-mĕrĭk) adj.
- paratactically
- parataxis
- paratenic host
- parathion
- parathyroid
- parathyroidectomy
- parathyroid gland
- parathyroid hormone
- paratroop
- paratrooper
- paratroops
- paratype
- paratyphoid fever
- paratypic
- paraurethral gland
- paravane
- Paraíba
- Paraíba do Sul
- parboil
- parbuckle
- Parcae
- parcel
- parcel post
- parcenary
- parcener