| either of the two pairs of folds of mucous membrane projecting into the cavity of the larynx. |
| vocal cords pl.n. Either of two pairs of bands or folds of mucous membrane in the throat that project into the larynx. The lower pair vibrate when pulled together and when air is passed up from the lungs, thereby producing vocal sounds. The upper, thicker pair are not involved in voice production. Also called vocal folds. |
