oc·​clude | \ ə-ˈklüd How to pronounce occlude (audio) , ä- \
occluded; occluding

Definition of occlude

transitive verb

1 : to close up or block off : obstruct a thrombus occluding a coronary artery also : conceal cosmetics that occlude pores
2 : sorb Palladium occludes large volumes of hydrogen.

intransitive verb

1 : to come into contact with cusps of the opposing teeth fitting together His teeth do not occlude properly.
2 : to become occluded

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Examples of occlude in a Sentence

a blood clot had occluded a major artery in his body
Recent Examples on the Web But the prying eyes of commercial banks looking to occlude bank accounts with incriminating evidence of crypto transactions scare traders more. Grace Akinosun, Quartz, 17 Mar. 2021 Feinstein extrapolated that statement to express a fear that Barrett, a textualist who once clerked for Justice Antonin Scalia, would allow her faith to occlude her legal judgment if a challenge to Roe should arise. Nicholas Rowan, Washington Examiner, 24 Sep. 2020 In the first, a patient who from birth had one eye occluded — from a cataract, for example, or from rare eyelid problems — but then had that anatomical problem removed still ended up with one blind or nearly blind eye. Quanta Magazine, 24 Mar. 2020 The only problem: Roads can be occluded by buildings, trees, or even street signs. Courtney Linder, Popular Mechanics, 27 Jan. 2020 The clear blue autumn sky was occluded by low ceilings and heavy beams; in places, early evening sunlight shone between the unplastered laths of the home’s interior walls, travelling from one room to the next. Geoff Manaugh, The New Yorker, 31 Oct. 2019 Her grace is occluded by her preschool motor skills, but the talent for winning a crowd is evident. Jamie Lauren Keiles, Time, 22 Aug. 2019 But about midway through the thirty-five minute show, the fireworks became occluded by their own smoke. Osita Nwanevu, The New Yorker, 6 July 2019 To know that Thomas Jefferson and George Washington enslaved men, women and children does not occlude their role in generating the founding documents and practices of the United States, but must sit beside it and be explained. Karin Wulf, Twin Cities, 13 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'occlude.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of occlude

1581, in the meaning defined at transitive sense 1

History and Etymology for occlude

Latin occludere, from ob- in the way + claudere to shut, close — more at close entry 1

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Time Traveler for occlude

Time Traveler

The first known use of occlude was in 1581

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Dictionary Entries Near occlude



occluded front

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Cite this Entry

“Occlude.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/occlude. Accessed 29 Jul. 2021.

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More Definitions for occlude


oc·​clude | \ ə-ˈklüd, ä- How to pronounce occlude (audio) \
occluded; occluding

Medical Definition of occlude

transitive verb

1 : to close up or block off : obstruct a thrombus occluding a coronary artery
2 : to bring (upper and lower teeth) into occlusion
3 : to take in and retain (a substance) in the interior rather than on an external surface : sorb proteins in precipitating may occlude alcohol

intransitive verb

1 : to come into contact with cusps of the opposing teeth fitting together his teeth do not occlude properly
2 : to become occluded


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