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hyp·ar·te·ri·al .hip-är-'tir-ē-əl, .hīp- adj situated below an artery specif of or being the branches of the bronchi given off below the pulmonary artery
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hyp·ar·te·ri·al (hi″pahr-tērґe-əl) [hypo + arterial] beneath an artery, applied especially to the bronchi which are so situated.Medical dictionary. 2011.