1. Pertaining to flowerless plants (ferns or mosses) in which growth occurs only at the tip of the main stem
   - acrogenic

See also: acrogen

• pigswill
• pigtail
• pigwash
• pigweed
• PIJ
• pika
• pike
• Pike's Peak
• pike-perch
• pikeblenny
• piked
• piked reverse hang
• piked whale
• pikeman
• piker
• pikestaff
• pikey
• pilaf
• pilaff
• pilar
• pilar cyst
• pilary
• pilaster
• Pilate
• Pilates