The removal or elimination of insects from something, or the process of freeing something from insects.
From dis- (remove) + insection (related to insects, from Latin insecta). This technical term combines dis- with a back-formation from insect.
Disinsection is a real quarantine process used by agricultural and public health officials to prevent invasive insects from spreading across borders. When you hear about fruit being treated before import, that's disinsection in action.
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