1. Relying on observation or experiment
   - experimental, data-based

See also: empiric, empirical

• pescetarian
• peseta
• pesewa
• Peshawar
• peshmerga
• peskiness
• pesky
• peso
• pessary
• pessimal
• pessimism
• pessimist
• pessimistic
• pessimistically
• pessimum
• pest
• pester
• pestered
• pesterer
• pestering
• pesthole
• pesthouse
• pesticide
• pesticide poisoning
• pestiferous