plural of aphotic zone

(medicine) The conceptual gap between well-defined diagnostic categories: any condition that is formally defined neither as disease nor as a normal healthy state.

plural of zone of rarity

Synonym of foveal avascular zone

plural of foveal zone

Synonym of purple airway

(climbing) Synonym of death zone

plural of lethal zone

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.

plural of hot zone