(chiefly US, idiomatic, sports) To fill a relevant region of the field of play. / (idiomatic, by extension) To provide a very large quantity (of something).

(botany) The area in a plant's leaf, stem, or fruit stalk, where the abscission layer if formed along with weakened sclerenchyma, absent collenchyma, and dense cytoplasm.

(geography) The oceanic realm consisting of the deep ocean, typified by a dearth of plant life, and plentiful carnivorous animals that are able to withstand extreme pressure.

plural of abscission zone

(of a tidal coast) The intertidal zone / (of a non-flowing, non-tidal body of water) The zone of shallow water to the limit at which plants root.

(climbing) Synonym of death zone

Synonym of purple airway

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

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.