Donner à plomb, Fr. To fall vertically, as the rays of the sun do in certain latitudes
Etre à plomb, Fr. To stand upright.
Marcher à plomb, Fr. To march with a firm, steady pace.
This word is sometimes used as a substantive, viz. Perdre son a plomb. To lose one’s balance.
Manquer d’a plomb, Fr. To be unsteady.
PLONGEE, Fr. A term used in artillery to express the action of a bomb, &c. which from the highest point of the curve it describes, takes a downward direction to strike its object.
Plongee du Rampart, Fr. The slope of the upper part of the parapet, belonging to the rampart, is so called. The slope is likewise named talus supérieur, or upper talus.
PLONGEONS, Fr. Artificial fireworks, which are shot into water and rise again without being extinguished.
Plongeons, Fr. Plungers or divers. Men of this description ought always to accompany an army, for the purpose of swimming under bridges of boats, &c. and making apertures in their bottoms.
PLONGER, Fr. To plunge any thing into the water. This word is likewise used to express the discharge of ordnance from top to bottom, as canon plongé.