<p><strong>Noun</strong></p><ul><li>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.</li></ul><p><strong>End of Response</strong></p>