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