An infestation is an invasion of insects on a place like a house or an attack by insects on a plant.

If you're scared of bugs, you're not going to like learning about an infestation, which is a huge amount of insects going where they're not supposed to be. If a house is full of cockroaches or other bugs, that's an infestation. One or two bugs doesn't count: an infestation means lots of bugs are invading, and it's a huge problem. Also, when plants are attacked by lots of swarming insects, that's called an infestation or plague.

Definitions of infestation
  1. noun
    the state of being invaded or overrun by parasites
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    fascioliasis, fasciolosis
    infestation with the liver fluke Fasciola hepatica; liver damage sometimes occurs; related to liver rot
    infestation with the large intestinal fluke Fasciolopsis buski; common in eastern Asia
    Guinea worm, Guinea worm disease, dracunculiasis
    a painful and debilitating infestation contracted by drinking stagnant water contaminated with Guinea worm larvae that can mature inside a human's abdomen until the worm emerges through a painful blister in the person's skin
    an infestation with or a resulting infection caused by the pinworm Enterobius vermicularis; occurs especially in children
    bilharzia, bilharziasis, schistosomiasis
    an infestation with or a resulting infection caused by a parasite of the genus Schistosoma; common in the tropics and Far East; symptoms depend on the part of the body infected
    myositis trichinosa, trichiniasis, trichinosis
    infestation by trichina larvae that are transmitted by eating inadequately cooked meat (especially pork); larvae migrate from the intestinal tract to the muscles where they become encysted
    acariasis, acaridiasis, acariosis
    infestation with itch mites
    infestation of the human intestine with Ascaris roundworms
    (veterinary medicine) infestation with coccidia
    echinococcosis, hydatid disease, hydatidosis
    infestation with larval echinococci (tapeworms)
    infestation of the body with parasitic worms
    infestation of the body by the larvae of flies (usually through a wound or other opening) or any disease resulting from such infestation
    onchocerciasis, river blindness
    infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America
    infestation with flukes obtained from eating raw fish; common in eastern Asia
    lousiness, pediculosis
    infestation with lice (Pediculus humanus) resulting in severe itching
    infestation with chiggers
    infestation by a roundworm; common in tropical areas with poor sanitation
    hookworm, hookworm disease
    infestation of the intestines by hookworms which enter the body (usually) through the skin
    head lice, pediculosis capitis
    infestation of the scalp with lice
    pediculosis corporis
    infestation of body skin with lice
    crabs, pediculosis pubis
    infestation of the pubic hair by crab lice
    type of:
    the condition of being filled to capacity
  2. noun
    a swarm of insects that attack plants
    synonyms: plague
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    type of:
    cloud, swarm
    a group of many things in the air or on the ground
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