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English definition of “spontaneous occlusion of the circle of Willis”

spontaneous occlusion of the circle of Willis

noun [U] uk   /spɒnˌteɪ.ni.əs əˌkluː.ʒən əv ðə sɜː.kəl əv wɪl.ɪs/ us    /spɑnˈteɪ.ni.əs əˈkluː.ʒən əv ðə ˈsɜr.kəl əv ˈwɪl.ɪs/ specialized
a very rare condition caused by blocked arteries in the circle of Willis (= a ring of arteries at the base of the brain)
(Definition of spontaneous occlusion of the circle of Willis from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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