retropharyngeal

adjective
ret·​ro·​pha·​ryn·​geal | \ -ˌfar-ən-ˈjē-əl, -fə-ˈrin-j(ē-)əl How to pronounce retropharyngeal (audio) \

Medical Definition of retropharyngeal

: situated or occurring behind the pharynx a retropharyngeal abscess