1. Capable of acting on or influencing each other
   - interactive

See also: interaction, mutual, reciprocal

• peppiness
• peppy
• Pepsi
• Pepsi Cola
• pepsin
• pepsinogen
• peptic
• peptic ulcer
• peptic ulceration
• peptidase
• peptide
• peptide bond
• peptide linkage
• peptisation
• peptise
• peptization
• peptize
• Pepto-bismal
• peptone
• Pepys
• per
• per annum
• per capita
• per capita income
• per centum