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.
New Yorkâs tallest building was deemed taller even though it has six fewer floors and its roof is more than 100 feet lower than the top side of the Willis Tower. (Formerly known as the Sears Tower, the Chicago building captured the title in the 1970s from the twin towers.) How can that be? It all depends on what the definition of an antenna is.