arterioluminal

adjective
ar·​te·​rio·​lu·​mi·​nal | \ är-ˌtir-ē-ō-ˈlü-mən-ᵊl How to pronounce arterioluminal (audio) \

Medical Definition of arterioluminal

: relating to or being the small vessels that branch from the arterioles of the heart and empty directly into its lumen

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