philharmonicPronunciation: /ˌfɪlhɑːˈmɒnɪk/Translate philharmonic | into Italian Definition of philharmonic adjective devoted to music (chiefly used in the names of orchestras):the Boston Philharmonic OrchestraOrigin: mid 18th century: from French philharmonique, from Italian filarmonico 'loving harmony' (see phil-, harmonic)philharmonic in other Oxford dictionaries Definition of philharmonic in the US English dictionary