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.
Illinois - Formerly known as the Sears Tower, Willis Tower is the tallest building in Chicago and all of Illinois. Build in 1975, for 25 years, it held the title of tallest building in the world. Currently, it now is just the 2nd tallest in the USA at 108 floors and 1,451 feet tall.