Clump (klŭmp), n. [Cf. D. klomp lump, G. klump, klumpen, Dan. klump, Sw. klump; perh. akin to L. globus, E. globe. Cf. Club.] 1. An unshaped piece or mass of wood or other substance.
2. A cluster; a group; a thicket.
A clump of shrubby trees.
Hawthorne.
3. The compressed clay of coal strata. Brande & C.