Cadet midshipman Meaning, Definition & Usage

Definitions
  1. formerly a title distinguishing a cadet line officer from a cadet engineer at the U. S. Naval Academy. See under Cadet.
Definitions
  1. formerly, a naval cadet who had served his time, passed his examinations, and was awaiting promotion; now called, in the United States, midshipman; in England, sublieutenant.

Webster 1913