Quick Quiz: Nouns Score: Change category, Flip order Reset Incorrect! Try again. Noun: pyrrosia lingua Your choice? fruit trees native to the Old World: pears   (Noun: pyrus) a stereophonic sound recording or reproducing system system using four separate channels   (Noun: quadraphony) the distinctive property of a complex sound (a voice or noise or musical sound)  (Noun: quality) east Asian fern having fronds shaped like tongues; sometimes placed in genus Cyclophorus