Synonym of foveal avascular zone

(aviation) The top of the Earth's atmosphere, from 50,000 ft (the start of the stratosphere) and up (to the edge of the exosphere at 1000 mi); where the effects of exposure to the environment on human life is similar to that of exposure to space; it being physiologically incompatible with human life.

Synonym of purple airway

(climbing) Synonym of death zone

A tributary of the river Neckar in Germany.

plural of zero blitz

(American football) A defensive scheme which involves no deep defenders, person-to-person coverage and a heavy pass rush.

A district of Baghdad, Iraq: A fortified high-security district of Baghdad; established by the United States occupation force in the wake of the U.S.-Iraq War invasion of 2003; which contains major international hotels, international organizations and forces headquarters, Iraqi national ministries and government offices, and VIP residences.

An area to which access is restricted because it is contaminated with radiation or a chemical or biological biohazard. / An area where fighting or hostilities are likely to erupt.

(Christchurch, New Zealand) To categorize as too damaged to repair, and requiring the owners to vacate (a property).