Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.


From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search



A process of taking in fluid together with its contents into the cell by forming narrow channels through its membrane that pinch off into vesicles, and fuse with lysosomes that hydrolyze or break down contents.


It is the process of cells to ingest extracellular fluids (ECF) or the surrounding fluid, but not very specific in the substances or dissolved particles that it absorbs.

Word origin: pin: G. pín(ein) to drink + cyte: G. kutos, hollow vessel + -osis: expressing state or condition.
Related forms: pinocytotic (adjective).
Synonym: cell-drinking, fluid endocytosis.
Compare: phagocytosis.
See also: endocytosis, plasma membrane.