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Webster 1913 Edition

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Noun.

[F. See

(Mil.)

A slope or sloping toward the front;

as, the

plongée

of a parapet; the

plongée

of a shell in its course.

[Sometimes written

plonge

plongée ‎(plural plongées)

(military) A slope or sloping toward the front.
the plongée of a parapet; the plongée of a shell in its course

plongée f ‎(plural plongées)

plongée