Definify.com
Webster 1913 Edition
Bulkhead
1.
(Naut.)
A partition in a vessel, to separate apartments on the same deck.
2.
A structure of wood or stone, to resist the pressure of earth or water; a partition wall or structure, as in a mine; the limiting wall along a water front.
Bulked line
, a line beyond which a wharf must not project; – usually, the harbor line.