1. Without soil or spot or stain
   - unsoiled, unstained

See also: clean

• pyretic
• Pyrex
• pyrexia
• pyrheliometer
• pyridine
• Pyridium
• pyridoxal
• pyridoxamine
• pyridoxine
• pyriform
• pyriform area
• pyriform lobe
• pyrilamine
• pyrimidine
• pyrite
• pyrites
• pyro-
• pyrocellulose
• Pyrocephalus
• Pyrocephalus rubinus mexicanus
• pyrochemical
• pyrochemical process
• pyrochemistry
• pyroclastic
• pyroelectric