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1. Dictionary

   obstruction

   /əbˈstrʌkʃn/

   noun

   • 1. the action of obstructing or the state of being obstructed: "walkers could proceed with the minimum of obstruction"
   • ▪ a thing that impedes or prevents passage or progress; an obstacle or blockage: "the tractor hit an obstruction"
   • ▪ (in various sports) the action of unlawfully obstructing a player in the opposing team.
   • ▪ blockage of a bodily passage, especially the gut: "they presented with severe intestinal obstruction"
   • ▪ the action of impeding the movement of traffic on a highway: "they were held for obstruction and other public order offences"
   • ▪ the action of deliberately hindering the police in their duties: "he was charged with obstruction of a police officer in the execution of his duty"

   Word Origin mid 16th century: from Latin obstructio(n-), from the verb obstruere (see obstruct).

   Scrabble Points: 15

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2. www.nejm.org › doi › fullAcute Abdomen in the Modern Era | New England Journal of Medicine

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   20 hours ago · An obstructive sleep apnea (OSA) is defined as at least 10 s of interruption of oronasal airflow corresponding to complete obstruction of the upper airways, despite continuous chest and abdominal movements, and associated with decreased oxygen saturation and/or arousals from sleep.

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   4 days ago · The pathophysiology of asthma is complex and involves airway inflammation, intermittent airflow obstruction, and bronchial hyperresponsiveness. The mechanism of inflammation in asthma may be...

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   4 days ago · Chronic obstructive pulmonary disease (COPD) is estimated to affect 32 million persons in the United States and is the fourth leading cause of death in this country. Patients typically have...

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