English

Proper noun

1. : The son of Zeus and Leto (or Jupiter and Latona), and the twin brother of Artemis (or Diana). He was the god of light, music, medicine, and poetry; and prophecy, dance, manly beauty, and more.
2. A very handsome young man.
3. A United States space program, and the vehicles it created, used for travel to the moon.
4. A town in Pennsylvania, USA.
5. A butterfly (Parnassius apollo, a large swallowtail with black and red spots on white wings).

Noun

1. An asteroid possessing an orbit that crosses the orbit of the Earth and an orbital period of over one year, with semimajor axes greater than 1 AU, and perihelion distances less than 1.017 AU.