What does "dike" mean?

Dike: An embankment to prevent inundations; a levee. Dikes that the hands of the farmers had raised . . . Shut out the turbulent tides. Longfellow.

Additional senses

  1. 2.A wall of turf or stone. [Scot.]
  2. 3.(Geol.) A wall-like mass of mineral matter, usually an intrusion of igneous rocks, filling up rents or fissures in the original strata.
  3. 4.To surround or protect with a dike or dry bank; to secure with a bank.
  4. 5.To drain by a dike or ditch.
  5. 6.To work as a ditcher; to dig. [Obs.] He would thresh and thereto dike and delve. Chaucer.

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