1. Produced by or producing fever
   - pyrogenic, pyrogenous

See also: pyrogen

• refractory
• refractory anaemia
• refractory anemia
• refractory period
• refractory pot
• refractory-lined
• refracture
• refrain
• reframe
• refrangible
• refresh
• refreshed
• refreshen
• refresher
• refresher course
• refreshful
• refreshfully
• refreshing
• refreshingly
• refreshment
• refried beans
• refrigerant
• refrigerate
• refrigerated
• refrigerating