clump

 
Pronunciation: /klʌmp/

noun

  • 1a small group of trees or plants growing closely together: a clump of ferns
  • a small, compact group of people: they sat on the wall in clumps of two and three
  • a compacted mass or lump of something: clumps of earth
  • Physiology an agglutinated mass of blood cells or bacteria, especially as an indicator of the presence of an antibody to them.
  • 3a thick extra sole on a boot or shoe.

verb

[no object]
  • 1form a clump or clumps: the particles tend to clump together

Origin:

Middle English (denoting a heap or lump): partly imitative, reinforced by Middle Low German klumpe and Middle Dutch klompe; related to club2