Plongee
Pronunciation : Plon`g?e"
Part of Speech : n.
Etymology : [F. See Plunge.] (Mil.)
Definition : Defn: A slope or sloping toward the front; as, the plong?e of a parapet; the plong?e of a shell in its course. [Sometimes written plonge.]
Source : Webster's Unabridged Dictionary, 1913