Breadcrumb Home > Dictionary > Index C coated pit: Meaning and Definition of Find definitions for: coat'ed pit' Pronunciation: [key] — Cell Biol. Cell Biol. a clathrin-lined depression in the outer surface of a cell membrane, formed of receptors and their specific ligands, that becomes a coated vesicle upon endocytosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coated coated vesicle ✖ Related Content Daily Word Quiz: sophism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language