Ptosis (from Greek πτῶσις  'falling, a fall, dropped') refers to droopiness or abnormal downward displacement of a body part or organ.

• Ptosis (eyelid)
• Ptosis (chin)
• Ptosis (breasts)
• Visceroptosis, of the abdominal viscera
  • Gastroptosis, of the stomach
• Nephroptosis, of the kidney

• The Fall of Satan

• Prolapse, a condition in which organs fall down or slip out of place
• Proptosis, or Exophthalmos