Webster's Revised Unabridged Dictionary · 1913

Impalement

Impalement , noun

1.
The act of impaling, or the state of being impaled. — Byron
2.
An inclosing by stakes or pales, or the space so inclosed. — H. Brooke
3.
That which hedges in; inclosure. [Rare] — Milton
4.
(Heraldry) The division of a shield palewise, or by a vertical line, esp. for the purpose of putting side by side the arms of husband and wife. See Impale, 3.