Dictionary
phag•o•cy•to•sis
Pronunciation: (fag"u-sī-tō'sis), [key]—
n.
Physiol.the ingestion of a smaller cell or cell fragment, a microorganism, or foreign particles by means of the local infolding of a cell's membrane and the protrusion of its cytoplasm around the fold until the material has been surrounded and engulfed by closure of the membrane and formation of a vacuole: characteristic of amebas and some types of white blood cells. Cf.
endocytosis, exocytosis, pinocytosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.