Learn how to say Extremity correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word extremity:
the farthest or outermost point or section; termination
the greatest or most intense degree
an extreme condition or state, as of adversity or disease
a limb, such as a leg, arm, or wing, or the part of such a limb farthest from the trunk
(usually plural) (archaic) a drastic or severe measure