D defs.my
Entry 2 senses Webster, 1913

Embankment

/ĕm-băng'-kmənt/ · Em·bank·ment · IPA /ɪmˈbæŋkmənt/
01 n. The act of surrounding or defending with a bank.
  1. 1.
    The act of surrounding or defending with a bank.
  2. 2.
    A structure of earth, gravel, etc., raised to prevent water from overflowing a level tract of country, to retain water in a reservoir, or to carry a roadway, etc.