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v. im·pinged, im·ping·ing, im·ping·es
a. To encroach on or limit something, such as a right: "powerful institutions of government that inhibited free enterprise and impinged on commercial—and by extension private—liberties" (Greg Critser).
b. Usage Problem To have an effect or influence: "Any consequence of a change in alleles ... is fair game for natural selection, so long as it impinges on the survival of the responsible allele, relative to its rivals" (Richard Dawkins).
a. To collide or strike against something: Sound waves impinge on the eardrum.
b. To advance over or press upon something: pain caused by a bone impinging upon a nerve.
To encroach upon; limit: "One of a democratic government's continuing challenges is finding a way to protect ... secrets without impinging the liberties that democracy exists to protect" (Christian Science Monitor).
Usage Note: The use of impinge meaning "to encroach; trespass," as in Americans dislike any policy that impinges on their liberty, is well established as standard. However, when impinge is used more loosely to mean "to have an effect" the Usage Panel is split. In our 2001 survey, only 47 percent of the Panel found the following sentence to be acceptable: What the recovered diary revealed about the villagers directly impinged on the lives of people living there many years later.
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|Noun||1.||impingement - influencing strongly; "they resented the impingement of American values on European culture"|
influence - causing something without any direct or apparent effort
|2.||impingement - a sharp collision produced by striking or dashing against something|