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.
Let's get High. Willis Tower is 1,450* feet tall, with the observation deck sitting on the 103rd floor at 1,353 feet. The Hancock Center rises 1,127* feet, and its observation level can be found on the 94th floor at 1,030 feet. If it's shear height you're looking for, the Willis tower is calling.