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Use "nonpenetrating" in a sentence
"Brown said blunt force trauma involves "nonpenetrating" injuries such as concussions, contusions, lacerations, broken bones and abrasions, which are distinguished from penetrating wounds inflicted by stabbing or shooting."
"The study used a new kind of nonpenetrating microelectrode that sits on the brain without poking into it."
"Consider going to see a treatment and having a close look at the needle, or, if you have a real phobia, choose the nonpenetrating form of the therapy (toyohari) mentioned earlier."