1. Owed as a debt
   "undischarged debts"
   - outstanding, owing 
2. Still capable of exploding or being fired
   "undischarged ammunition"
   - unexploded

See also: loaded, unpaid

• family Proteidae
• family Prunellidae
• family Pseudococcidae
• family Pseudomonodaceae
• family Psilophytaceae
• family Psilotaceae
• family Psittacidae
• family Psocidae
• family Psophiidae
• family Psychodidae
• family Psyllidae
• family Pteridaceae
• family Pteriidae
• family Pteroclididae
• family Pterodactylidae
• family Ptilonorhynchidae
• family Pucciniaceae
• family Pulicidae
• family Punicaceae
• family Pygopodidae
• family Pyralidae
• family Pyralididae
• family Pyrolaceae
• family Pyrrhocoridae
• family Pythiaceae