Etymograph

English

macropinocytosis

From macro- + pinocytosis.

A compound of macro- + pinocytosis

Proto-Indo-European *meh₂ḱ- ‘to increase’

Proto-Indo-European *mh₂ḱrós ‘lean, meager’

Proto-Hellenic *makrós

Ancient Greek μακρός ‘long’

English macro-

Proto-Indo-European *peh₃- ‘to drink’

Ancient Greek πῑ́νω ‘to drink’

New Latin pīnocytōsis

English pinocytosis

Today it means

noun A form of endocytosis in which a large fluid-filled vesicle, or macropinosome, is pinched off from the cell membrane and brought into the interior of the cell

Language periods are conventional ranges, not dates for this word.

Etymograph / macropinocytosis