Medical Definition of dorsiflexion. : flexion in a dorsal direction; especially : flexion of the foot in an upward directionâcompare plantar flexion.
Willis Tower. The Willis Tower, built as and still commonly referred to as Sears Tower, is a 108-story, 1,450-foot (442.1 m) skyscraper in Chicago, Illinois, United States.
The Taipei 101 Tower. Measuring 509 meters (1,670 feet) tall, the Taipei 101 Tower in Taipei, Taiwan is widely considered the world's fourth tallest building. But, like the Burj Dubai, the Taipei 101 Tower gets much of its height from a huge spire.