1. Plutonium 239 that is recovered when nuclear weapons are disassembled; it is stored in plutonium pits
   - weapons plutonium

Type of: plutonium 239

• Phacelia campanularia
• Phacelia minor
• Phacelia tanacetifolia
• Phacelia whitlavia
• Phacochoerus
• phacoemulsification
• phaeochromocytoma
• Phaeophyceae
• Phaeophyta
• Phaethon
• Phaethontidae
• phaeton
• phage
• phagocyte
• phagocytic
• phagocytosis
• Phagun
• phaius
• Phalacrocoracidae
• Phalacrocorax
• Phalacrocorax carbo
• phalacrosis
• Phalaenopsis
• Phalaenopsis amabilis
• Phalaenoptilus