extremity
nounUK /ɪkˈstreməti/
US /ɪkˈstreməti/
The very end part of something, like the tip of your finger.
The doctor checked the extremities of his fingers and toes.
OTHER MEANINGS
2. A hand or foot, or the end of an arm or leg.
Frostbite often affects the extremities first.
3. A very difficult or dangerous situation.
The climbers were in extreme extremity on the mountain.
4. The greatest or most intense degree of something.
She was pushed to the extremity of her patience.