Definition of pinocytosis in English:


Line breaks: pino|cyt¦osis
Pronunciation: /ˌpiːnəʊsʌɪˈtəʊsɪs
, ˌpɪnəʊ-, ˌpʌɪnəʊ-/


[mass noun] Biology
  • The ingestion of liquid into a cell by the budding of small vesicles from the cell membrane.
    More example sentences
    • Cells use pinocytosis to take up TCII hydroxocobalamin.
    • However, small areas of low emission could be found in the cytoplasm, showing that the compound was taken up by the cells, probably by pinocytosis.
    • It is possible that the chemical can gain entry into cells as small, colloidal particles via phagocytosis or pinocytosis and may also enter dead, dying or damaged cells.


late 19th century: from Greek pino 'drink' + -cytosis on the pattern of phagocytosis.

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a small amount; a little