Definitions

from The Century Dictionary.

  • noun A large piece; a lump; in coal-mining, a large mass of fallen rock.
  • To form into clumps or masses.
  • noun A thick, heavy shoe: usually in the plural.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb obsolete To form into clumps or masses.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A grass or other plant that tends to form clumps.
  • verb obsolete, intransitive To form into clumps or masses.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

clump +‎ -er

from Wiktionary, Creative Commons Attribution/Share-Alike License

Compare German klumpern ("to clod"). See clump (noun).

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Examples

  • I was seated at my typewriter and the book was balkier than usual, and I wished that the clumper at the door would go away.

    Dawn O'Hara, the Girl Who Laughed Edna Ferber 1926

  • The cold, indeed, was now becoming so intense as to congeal and skim over all the pools and still eddies of the river, and make solid ice along the shores of the rapid currents of the stream; while even the ground was fast becoming so frozen as to clumper and sound beneath the hurrying tread of our anxious travellers.

    Gaut Gurley D. P. Thompson 1831

  • There's a narrow-leafed new clumper with an especially slim profile out this spring,

    The Seattle Times 2009

  • There's a narrow-leafed new clumper with an especially slim profile out this spring,

    The Seattle Times 2009

  • Hinkley describes the foot-high clumper as "excellent for moist soils in full sun.

    The Seattle Times 2009

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