Definition of clump in English:

clump

noun

  • 1A compacted mass or lump of something.

    ‘clumps of earth’
    • ‘He reached under him and cleared away a few large clumps of dirt, leaves, and twigs, and stones, which appeared ordinary but served as a good hiding place for the tunnel entrance.’
    • ‘Basically, they are clumps of deep fried dough covered with powdered sugar.’
    • ‘A spokesman for the Wetland Centre said there are already signs that this will be an excellent breeding year for amphibians with large clumps of frogspawn evident in shallow pools throughout the reserve.’
    • ‘When I went higher still, I was able to look down on a great expanse of white cloud, looking like giant clumps of spotlessly clean cotton wool.’
    • ‘Milled rice contains agglomerates, or clumps, of starch and protein.’
    • ‘To fatten the birds before sale, some women were holding them by the neck and forcing clumps of gruel down their throats.’
    • ‘The form became clearer, it was a woman, whose blond hair was matted with clumps of blood.’
    • ‘Lumps in a starch paste are caused by clumps of granules gelatinizing on their outsides and becoming impervious.’
    • ‘My skin is so soggy from perspiration that when I scratch it the skin detaches and I end up with clumps of skin under my fingernails.’
    • ‘Through her long fingers fall clumps of rich loam and tiny, glistening seeds.’
    • ‘One Western cameraman saw scraps of flesh, pools of blood and clumps of human hair.’
    • ‘The pillow was covered with clumps of Hannah's brown hair.’
    • ‘He opened the door and walked up the stairs up toward the music wing, the snow falling off of his cloths and shoes in huge clumps.’
    • ‘They don't look like ants and they can be pretty scary when there are big clumps of them.’
    • ‘The powder areas are like wide open fields, not too steep, enabling you to make turns at your leisure, spraying clumps of fluffy snow in both directions.’
    • ‘When small clumps of snow began to fall on him, he knew what was coming and began digging a hole, where he hunkered as the slide hit.’
    • ‘It still left giant clumps of grass clippings directly underneath the mower.’
    lump, clod, mass, gobbet, wad, concentration
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    1. 1.1 A small, compact group of people.
      ‘they sat on the wall in clumps of two and three’
      • ‘We walked out in clumps; like flies gathering around a piece of sugar.’
      • ‘‘You know how there are always those clumps of people on the square’ she'd said to me.’
      • ‘There were clumps of people standing around here and there, watching through the gaps between the houses.’
      • ‘Accordingly, we dissolved in clumps of threes and fours, and drifted across the level excavated plain towards the pools of shade.’
      • ‘For some reason, I had always visualised my readership as a clump of four or five people, clustered behind me as I typed, and straining to look at the screen.’
      • ‘And every single time, as I've attempted to leave the car park, I've come across confused looking clumps of young people wandering in the road like bovines with backpacks.’
      • ‘Despite the enormity of Site B and the thronging clumps of people they passed, she seemed to know her way very well.’
    2. 1.2 A small group of trees or plants growing closely together.
      ‘a clump of ferns’
      • ‘To escape a drenching, I sheltered in a clump of trees.’
      • ‘She was lying by a clump of bushes near the tree which had felled her; a dry, broken branch underneath her.’
      • ‘She could hear the tap of his shoes from her hiding spot behind a clump of artificial plants.’
      • ‘A clump of palm trees ringed by white sand in the turquoise waters of the Caribbean, it's a treasure map come to life.’
      • ‘I swing my arms to propel myself out of a clump of these strange water plants.’
      • ‘Then she walked downhill until she found a place to spend the night - a clump of juniper trees on a narrow ledge. - -’
      • ‘After a few miles they paused under a clump of trees.’
      • ‘He pulled her towards a tall stone tower nestled against a clump of apple trees.’
      • ‘Another neighbour reported seeing him walk towards a clump of trees holding what looked like a rifle.’
      • ‘She pointed to a clump of red seaweed growing by a cluster of rocks.’
      • ‘A lovely brook passed through the trees, and a clump of water lilies waved at them in the breeze.’
      • ‘True there were some daffodils in early spring, and I have transplanted a few clumps of snowdrops that will give colour early next year.’
      • ‘His eyes scanned the muddy riverbank until he found what he was looking for: a large stick tangled in a clump of weeds.’
      • ‘In one square, a large group of men presides over a giant chess set in the sun-streaked shade of a clump of trees.’
      • ‘A clump of rank and tangled vegetation thus accumulates, seeds, and stimulates further growth.’
      • ‘This delightful grass grows to 40 cm producing a clump of almost white leaves.’
      • ‘When we caught up to them, we hid in a clump of trees and had a perfect view of everything.’
      • ‘They look great when planted in clumps and can be grown between shrubs and herbaceous perennials.’
      • ‘Wild flowers lined the sides of the road, the stock tanks were full of water, and fat bulls dozed in clumps of live oaks.’
      • ‘Fresh new leaves will soon begin to grow and form a clump of foliage for the rest of the summer.’
      cluster, thicket, group, bunch, collection, assembly, assemblage
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    3. 1.3Physiology An agglutinated mass of blood cells or bacteria, especially as an indicator of the presence of an antibody to them.
      • ‘This is where the red blood cells sort of form into clumps and these are the start of the Deep Vein Thromboses (DVT's).’
      • ‘The eight strains that showed aggregative adherence pattern in HeLa cells also showed clump formation in liquid cultures.’
      • ‘Other problems include irregularities of the heart beat, heart muscle destruction and blood clots and clumps of bacteria that go from the heart to the brain and other organs.’
      • ‘A hallmark of Alzheimer's is the buildup of clumps of proteins (amyloid plaques) in the brain.’
      • ‘Bacterial clump formation on the surface of the medium was observed with all the strains.’
  • 2A thick extra sole on a boot or shoe.

  • 3The sound of heavy footsteps.

    stamp, stomp, stump, clomp, tramp, plod, trudge, walk heavily, lumber, stumble
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verb

[NO OBJECT]
  • 1Form into a clump or mass.

    ‘the particles tend to clump together’
    • ‘Aspirin reduces the risk of heart attack by reducing platelets' ability to clump together.’
    • ‘The pus tends to clump together on the lashes, making them stick together.’
    • ‘This ice was heavier than before and clumping more that the first batch.’
    • ‘About a billion years after the Big Bang, the expanding cosmic dust started to condense or clump into what would become galaxies, stars, and planets.’
    • ‘The use of gels can cause hair to clump together to expose more scalp in thinning hair.’
    • ‘Rather than dying, these abnormal cells clump together to form tumors.’
    • ‘If such particles become unstable, they clump together causing the paint to thicken substantially.’
    • ‘Oil causes waterbirds' feathers to clump together, which exposes the animals to cold temperatures.’
    • ‘When a predator appears, older members of the herd emit intense warning calls that prompt the rest of the herd to clump together for protection and then flee the scene.’
    • ‘If the crumbs clump together and stay roughly clumped, no need to add butter.’
    • ‘But domesticated grazers - with men guarding them and killing their predators - have no reason to clump together.’
    • ‘Just as bubbles on the surface of a cup of coffee tend to clump together, so do the crystals in a rock.’
    • ‘Anticoagulant drugs help prevent the formation of harmful clots in blood vessels by decreasing the blood's ability to clump together.’
    • ‘The mutant protein in each of these conditions is prone to clump together, forming aggregates, which appear to damage brain tissue.’
    • ‘When a blood vessel is damaged or cut, platelets clump together and plug up the hole until the blood clots.’
    • ‘Add the grated cheese, whisking constantly to prevent clumping.’
    • ‘But tiny particles tend to clump together in the air and then fall to the ground, so they need to be treated with a chemical to prevent that and keep them airborne.’
    • ‘People have a tendency to clump together, and a group generally makes more noise than a single individual.’
    • ‘The other kids sat clumped in the far corners, smoking and watching us.’
    • ‘A team of chemists found that when certain substances are diluted in water, the molecules clump together instead of getting further apart, as common sense would suggest.’
    • ‘The nodules can clump together in lumps as big as a fist, mostly on limbs and trunk.’
  • 2Walk with a heavy tread.

    • ‘Her boots clumped heavily on the ground beneath her, stumbling as she fought to keep up with his ever-increasing speed.’
    • ‘Surprising, really - clumping around in the dark is noisy.’
    • ‘She looked up and smirked as her brother went clumping out of the room, his boots thudding loudly, deliberately.’
    • ‘She clumps around and nestles into a corner, and then humphs because I don't give up my bed for her.’
    • ‘So for those who still dream, it'll have to be back to clumping around a garage with your cousin's motorbike helmet on backwards.’
    • ‘And with that, she gave him one last look, turned and started up the sidewalk again in that short, clumping stride of hers that reminded him of a lumberjack’
    • ‘It's so trendy there with all these trendy people and then there was me just clumping around but it was brilliant fun.’
    • ‘Eventually they came clumping down the stairs - for their fancy dress they had all dressed up as school girls.’
    • ‘The wife, who has had her leg in plaster these past three weeks, has become adept at clumping around the house and garden in a Long John Silver sort of way (making a lot of noise, but not moving very far).’
    • ‘They also teach the often-overlooked basics about how to move about on skis, encouraging you to clump around on a carpet fully kitted up.’
    stamp, stomp, stump, clomp, tramp, plod, trudge, walk heavily, lumber, stumble
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Origin

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

Pronunciation

clump

/kləmp//kləmp/