Longman Dictionary English From Longman Dictionary of Contemporary EnglishApolloA‧pol‧lo /əˈpɒləʊ $ əˈpɑː-/ noun 1 in Greek and Roman mythology, the god of the Sun, medicine, poetry, music, and prophecy. He is usually shown in pictures and sculptures as a beautiful young man.2 literary a very beautiful young man → Adonis ldoceonline.com