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 Blackstone Group will buy Chicago's Willis Tower for $1.3 billion, the highest price ever paid for an American office tower outside of New York City. The 110-story office tower, formerly called the Sears Tower, is a landmark in Chicago and one of the tallest buildings in the world. Blackstone (BX) said Monday that it signed a deal to buy the nation's second-tallest office building from 233 South Wacker LLC., the group that currently owns the tower.