putamen

Etymology
.

Noun

 * 1)  The shell of a nut; the stone of a drupe fruit; endocarp.
 * 2)  A round structure located at the base of the forebrain, regulating movement and learning.

Related terms

 * putamenal

Etymology
From.

Noun

 * 1) cutting, clipping (that which is cut away)
 * 2) shell, peel (removed from eggs, vegetables etc.)