'Earthwork' definitions:

Definition of 'earthwork'

From: WordNet
noun
An earthen rampart

Definition of 'Earthwork'

From: GCIDE
  • Earthwork \Earth"work`\, n.
  • 1. (Mil.) Any construction, whether a temporary breastwork or permanent fortification, for attack or defense, the material of which is chiefly earth. [1913 Webster]
  • 2. (Engin.) (a) The operation connected with excavations and embankments of earth in preparing foundations of buildings, in constructing canals, railroads, etc. (b) An embankment or construction made of earth. [1913 Webster]