What does the word formula mean?

Usage examples for formula

  1. Such a formula is one of the shortest in the world; and is certainly the shortest way with the Euphemists. – Eugenics and Other Evils by G. K. Chesterton
  2. With his usual formula " 'Scuse me; I'm a married man, y'know," he hurried out of the bar in search of his little present. – Jonah by Louis Stone
  3. I recognize the formula. – The House of Toys by Henry Russell Miller