There are 2 main definitions of apollo in English:

apollo1

Line breaks: apollo
Pronunciation: /əˈpɒləʊ
 
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noun (plural apollos)

A large butterfly which has creamy-white wings marked with black and red spots, found chiefly on the mountains of mainland Europe.
  • Parnassius apollo, family Papilionidae
More example sentences
  • The apollo goes one step further; after mating he secretes and glues a rigid structure called a ‘sphragis’ over the unfortunate female's abdomen.
  • The adult Apollo butterfly can be seen during July and August on sunny hills and mountains 1,500 to 6,500 feet above sea level.
  • Small apollo butterflies demonstrate various means of defense to increase their chances of survival.

Origin

mid 19th century: from Apollo.