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conus arteriosus

co·nus ar·te·ri·o·sus

noun \ˈkō-nə-sär-ˌtir-ē-ˈō-səs\

plural co·ni ar·te·ri·o·si \-ˌnī-är-ˌtir-ē-ˈō-ˌsī, -(ˌ)nē-\

: a conical prolongation of the right ventricle from which the pulmonary arteries emerge—called also conus

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