extremity in WordNet English dictionary

1. an external body part that projects from the body
   "it is important to keep the extremities warm"
   extremity  appendage  member 
   
2. that part of a limb that is farthest from the torso
   extremity 
   
3. the outermost or farthest region or point
   extremity 
   
4. the greatest or utmost degree
   "the extremity of despair"
   extremity 
   
5. an extreme condition or state (especially of adversity or disease)
   extremity