noun
a small arachnid that lives in house dust and feeds on flakes of human skin
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House dust mites are microscopic organisms that can be found in many homes.
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I heard that house dust mites are everywhere in our house!
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Those little buggers called house dust mites are causing my allergies to act up.
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The presence of house dust mites in our lives is like a constant reminder of the need for cleanliness.