nasal cavity the proximal portion of the passages of the respiratory system, extending from the nares to the pharynx; it is divided into left and right halves by the nasal septum and is separated from the oral cavity by the hard palate.he rostral end of the cavity just inside the nostril is the nasal vestibule, and the caudal part opening into the pharynx is the nasopharyngeal meatus. oral cavity. the cavity of the mouth, made up of a vestibule and oral cavity proper.
polyglot. 1  able to speak or write several languages; multilingual. 2  containing, composed of, or written in several languages: a polyglot Bible. 3  a mixture or confusion of languages. 4  a person who speaks, writes, or reads a number of languages. 5  a book, especially a Bible, containing the same text in several languages.
Polyglots will be the first to admit, they are language learners as well, not language machines. The fluency issue is symptomatic of what can be quite a negative attitude to studying languages. I think there are three categories of people when it comes to languages: The billingual-from-birth type.