Adeptus, Adepta, or Adept is a title given to all servants of the Emperor, of all the departments of the Adeptus Terra. On Terra, the title separates the employed and settled servants of the Adeptus Terra, from the often destitute non-adept. Non-adepts can gain the title, becoming menials.
Adepta is the feminine High Gothic form of the title.
A similar and analogous title of the Adeptus Mechanicus is that of Tech Adept.