micropinocytosis

noun
mi·​cro·​pi·​no·​cy·​to·​sis | \ ˌmī-krō-ˌpī-nō-ˌsī-ˈtō-səs How to pronounce micropinocytosis (audio) \
plural micropinocytoses\ -​ˈtō-​ˌsēz How to pronounce micropinocytoses (audio) \

Medical Definition of micropinocytosis

: the incorporation of macromolecules or other chemical substances into cells by membrane invagination and the pinching off of relatively minute vesicles

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