Definition of overgrow in US English:

overgrow

verb

[with object]
  • Grow or spread over (something) so as to choke or stifle it.

    ‘the mussels overgrow and smother whatever is underneath’
    • ‘Their essentially two-dimensional mode of growth often brings them into contact with other benthic organisms that tend to overgrow them.’
    • ‘Some colonies have the ability to grow beyond a small, initial hard substrate, and overgrow a particulate substrate.’
    • ‘Galena may also overgrow clausthalite, and replace pyrite and chalcopyrite.’
    • ‘Tunicates can overgrow sea scallops and mussels, and they may affect other species of clams and worms that live in the seabed below the tunicate colony.’
    • ‘My campagnola tangles with ivy that overgrows the fence.’
    • ‘Some gardeners might spurn a plant that usurps and overgrows their garden.’
    • ‘The rule here is, if they overgrow your pond, throw the excess onto your compost pile.’
    • ‘In all the experiments, new recruits of crusts were overgrown by turf.’
    • ‘Jasmine and hibiscus have overgrown this site, which is now as green and resplendent as the rest of the Vietnamese countryside.’
    • ‘This can lead to reduced coral growth, inability to recover from hazards like cyclones, smothering of coral by sediment, fish poisoning and unusually high growth rates for organisms that overgrow coral or support its rivals.’
    • ‘When sea stars were experimentally removed, mussels moved down the shore, overgrowing all other species on primary rock surfaces.’
    • ‘At the latest, low-temperature stage, calcite develops steep scalenohedra and overgrows stilbite or apophyllite.’
    • ‘Massive polycrystalline pyrite may also overgrow the plant axis, sometimes completely enclosing it.’
    • ‘Later, a second generation of clear calcite, following the orientation of the earlier calcite, overgrew the fragments, forming uniform crystals beyond the rim of the crust.’
    • ‘Acropora is the genus most affected by bleaching in the Maldives but it is very competitive and will overgrow slower-growing corals if the conditions are right, as they are here.’
    invade, storm, march into, occupy, infest, swarm over, surge over, flow over, inundate, swamp, overwhelm, permeate, penetrate, spread over, spread like wildfire over, run riot over, grow over
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Pronunciation

overgrow

/ˌoʊvərˈɡroʊ//ˌōvərˈɡrō/