- Geology an intrusion of igneous rock cutting across existing strata. Compare with sill.
verb[with object] (often as adjective diked)
Middle English (denoting a trench or ditch): from Old Norse dík, related to ditch. 1sense 1 of the noun) in Oxford Dictionaries (US English)">1sense 1 of the noun has been influenced by Middle Low German dīk 'dam' and Middle Dutch dijc 'ditch, dam'
Dike can also be spelled dyke: both are correct.