~ 1
(also dike )
■ noun
1》 an embankment built to prevent flooding from the sea.
↘an earthwork serving as a boundary or defence: Offa's Dyke.
2》 a ditch or watercourse.
3》 Geology an intrusion of igneous rock cutting across existing strata. Compare with sill .
■ verb [often as adjective ~d ] provide (land) with a ~ to prevent flooding.
Origin
ME: from ON dík , related to ditch .
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~ 2
(also dike )
■ noun informal a lesbian.
Derivatives
~y adjective ( dykier , dykiest ).
Origin
1940s (earlier as bull~ ): of unknown origin.