microcirculation Syllabification: (mi·cro·cir·cu·la·tion)Pronunciation: /ˌmīkrōˌsərkyəˈlāSHən/Definition of microcirculation noun circulation of the blood in the smallest blood vessels. Derivatives microcirculatoryPronunciation: /-ˈsərkyələˌtôrē/ adjective microcirculation in other Oxford dictionaries Definition of microcirculation in the British & World English dictionary