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.
Eleven years of ups and downs are set to culminate in the sale of 110-story Willis Tower to New York-based private-equity firm Blackstone Group, which has offered the highest price ever for a U.S. office property outside New York. Were the men who bought the skyscraper in 2004 smart or lucky? The answer: both.