a state of increased calibre of the blood vessels.
An increase in the diameter of blood vessels.
A state of increased calibre of the blood vessels. ... (18 Nov 1997) ... 
(va″zo-) (vas″o-dĭ-lә-ta´shәn) vasodilation.
Type: Term Pronunciation: vā′sō-di′lă-tā′shŭn, vas′ō- Synonyms: vasodilation