1. (astronomy) the point in the orbit of one body of a binary system at which it is closest to the centre of mass of the system
   - pericenter [US]

Derived forms: pericentres

• paratha
• Parathelypteris
• Parathelypteris novae-boracensis
• Parathelypteris simulata
• parathion
• parathion poisoning
• parathormone
• parathyroid
• parathyroid gland
• parathyroid hormone
• paratrooper
• paratroops
• paratyphoid
• paratyphoid fever
• paraumbilical vein
• paraxial
• Parazoa
• parazoan
• parboil
• parbuckle
• Parcae
• parcel
• parcel bomb
• parcel of land
• parcel out