Definition from Wiktionary, the free dictionary
pavisade (plural pavisades)
- A row of shields hung on the side of a ship to protect it at war and discourage boarding by enemies.
- 1786: Pavaches were sometimes supported by props; they were also used at sea to defend the sides of vessels, like the present netting of our ships of war; this defence was called a pavisade, it may be seen in the representation of ancient ships. — Francis Grose, A Treatise on Ancient Armour and Weapons, page 27.