Dike

dīk, n. a trench, or the earth dug out and thrown up: a ditch: a mound raised to prevent inundation: in Scotland, a wall ( Dry-stane dike , a wall without mortar; Fail-dike , a wall of turf), sometimes even a thorn-hedge: ( geol. ) a wall-like ma of igneous rock in the fi ures of stratified rocks.— v.t. to surround with a dike or bank. [A.S. díc ; Dut. dijk , Ger. teich , a pond; perh. conn. with Gr. teichos , a wall or rampart. See Dig , Ditch .]