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BTD (disambiguation)

BTD may refer to:

  • BTD (Before the Dawn)
  • Bloons Tower Defense, the tower defense series by Ninja Kiwi.
  • Biotinidase, the enzyme that in humans is encoded by the BTD gene.
  • The Boston Transportation Department.
  • Douglas BTD Destroyer, 1940s American torpedo/dive-bomber
BTD (Before the Dawn)

"BTD (Before the Dawn)" is a song released by the South Korean boy band Infinite. The song is the second track of the group's second EP Evolution, released on January 6, 2011. A Japanese version of the song served as their debut single in Japan. It was released on November 19, 2011 in 3 different editions.