clump

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.

• 2another term for clomp.

• 3a thick extra sole on a boot or shoe.

verb

• 1form a clump or clumps:the particles tend to clump together

• 2another term for clomp.