Palisade \Pal`i*sade"\, n. [F. palissade, cf. Sp. palizada, It. palizzata, palizzo, LL. palissata; all fr. L. palus a stake, pale. See {Pale} a stake.] 1. (Fort.) A strong, long stake, one end of which is set firmly in the ground, and the other is sharpened; also, a fence formed of such stakes set in the ground as a means of defense.
2. Any fence made of pales or sharp stakes.
3. A line of bold cliffs, esp. one showing basaltic columns; -- usually in pl., and orig. used as the name of the cliffs on the west bank of the lower Hudson. [Webster 1913 Suppl.]
{Palisade cells} (Bot.), vertically elongated parenchyma cells, such as are seen beneath the epidermis of the upper surface of many leaves.
{Palisade worm} (Zo["o]l.), a nematoid worm ({Strongylus armatus}), parasitic in the blood vessels of the horse, in which it produces aneurisms, often fatal.
Palisade \Pal`i*sade"\, v. t. [imp. & p. p. {Palisaded}; p. pr. & vb. n. {Palisading}.] [Cf. F. palissader.] To surround, inclose, or fortify, with palisades.