What is the meaning of Muse?

noun

• In ancient Greek mythology any of 9 daughters of Zeus and Mnemosyne; protector of an art or science.
• The source of an artist's inspiration.
  • usage: "Euterpe was his muse"

verb

• Reflect deeply on a subject.
  • usage: "I mulled over the events of the afternoon"; "philosophers have speculated on the question of God for thousands of years"; "The scientist must stop to observe and start to excogitate"
  • synonyms: chew over, think over, meditate, ponder, excogitate, contemplate, reflect, mull, mull over, ruminate, speculate