单词	impaction
释义	impaction noun im·​pac·​tion im-ˈpak-shən  : the act of becoming or the state of being impacted especially : lodgment of something (such as feces) in a body passage or cavity Example Sentences Recent Examples on the Web And sand colic -- the gut impaction that killed Tony, the horse found with 44 pounds of gravel in his gut -- often occurs when horses are fed in areas with abundant sand and gravel. Drew F. Lawrence And Katie Bo Lillis, CNN, 7 Apr. 2022 Conversely, stool impaction may lead to incontinence, which is why a thorough history and exam is so critical. Dr. Keith Roach, oregonlive, 7 Feb. 2022 The four mechanisms are inertial impaction, interception, diffusion, and electrostatic attraction. USA Today, 7 Jan. 2022 Fecal impaction is most common in the elderly and in patients with neurodegenerative illnesses like Parkinson's. Colleen Stinchcombe, Health.com, 13 Oct. 2021 Several conditions can cause vomiting, including fecal impaction, so your best bet is to get to your doctor quickly for an assessment. Colleen Stinchcombe, Health.com, 8 Oct. 2021 Fernandez explains that small particles get removed by diffusion and larger ones by impaction. Joe Lindsey, Outside Online, 30 Sep. 2020 Just 35 percent of US companies have analyzed the near-term impact of the departure of older workers and just 17 percent have considered longer-term impactions over the next decade, according to the survey. Mark Miller, The Christian Science Monitor, 21 June 2018 The monthly expressing of the sacs helps with the impaction, but your dog might still be feeling some discomfort, which is soothed by dragging her bottom on something soft. Joan Morris, The Mercury News, 16 Jan. 2017 See More Word History First Known Use 1739, in the meaning defined above Medical Definition impaction noun im·​pac·​tion im-ˈpak-shən  : the act of becoming or the state of being impacted specifically : lodgment or an instance of lodgment of something (as a tooth or feces) in a body passage or cavity
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