1) Bodily cavity 2) Cavity 3) Cavum 4) The lower part of the pharynx 
The part of the pharynx lying below the aperture of the larynx and behind the larynx; it extends from the vestibule of the larynx to the oesophagus at the level of the inferior border of the cricoid cartilage. ... Synonym: pars laryngea pharyngis, hypopharynx, laryngeal part of pharynx, laryngeal pharynx. ... (05 Mar 2000) ... 
(lә-ring″go-far´inks) the portion of the pharynx below the upper edge of the epiglottis, opening into the larynx and esophagus.
Type: Term Pronunciation: lă-ring′gō-far′ingks Definitions: 1. The part of the pharynx lying below the aperture of the larynx and behind the larynx; it extends from the vestibule of the larynx to the esophagus at the level of the inferior border of the cricoid cartilage. Synonyms: pars laryngea pharyngis, hypopharynx, laryngea...
(lua-ring;go-far;ingks) The inferior or lower portion of the pharynx in contact with the larynx. 686
[n] - the lower part of the pharynx
lower portion of the pharynx that connects to the larynx
noun the lower part of the pharynx