1. Abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding)
   - melena

Derived forms: melaenas

Type of: BM, dejection, faecal matter [Brit, Cdn], faeces [Brit, Cdn], fecal matter [N. Amer], feces [N. Amer], ordure, stool

Encyclopedia: Melaena

• genus Psephurus
• genus Psetta
• genus Psettichthys
• genus Pseudacris
• genus Pseudaletia
• genus Pseudechis
• genus Pseudemys
• genus Pseudobombax
• genus Pseudococcus
• genus Pseudocolus
• genus Pseudolarix
• genus Pseudomonas
• genus Pseudopleuronectes
• genus Pseudoryx
• genus Pseudotaxus
• genus Pseudotsuga
• genus Pseudowintera
• genus Psidium
• genus Psilophyton
• genus Psilotum
• genus Psithyrus
• genus Psittacosaurus
• genus Psittacula
• genus Psittacus
• genus Psophia