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.
polygon. n. 1. (Mathematics) a closed plane figure bounded by three or more straight sides that meet in pairs in the same number of vertices, and do not intersect other than at these vertices. The sum of the interior angles is (n -2) Ã 180Â° for n sides; the sum of the exterior angles is 360Â°.