dikes

Sheets of igneous rock cutting through older rock layers.

"Geologists studied the basalt dikes in the cliff."

Walls or embankments built to prevent flooding or hold back water.

"The Dutch built many dikes to protect their land."

A derogatory and offensive term for lesbian women.

"They used the offensive term "dikes"."

To enclose or protect an area with a dike or embankment.

"The farmer dikes his fields against the river."