hadal
/ˈheɪdəl
/adjective
Relating to the zone of the sea greater than 6000 m in depth (chiefly oceanic trenches).The hadal environment (water depths greater than 6000m) is one of the last habitats on earth to be impacted by unsustainable human activity....
- Submarine trenches usually develop downward from depths around 6,000 m, the beginning of the hadal region, exclusive domain of highly specialized and exquisite molluscan communities.
- The hadal zone makes up only 1 or 2 percent of the ocean and is located in narrow oceanic trenches.
Origin
Mid 20th century: from Hades + -al.
- potassium chloride
- potassium cyanide
- potassium feldspar
- potassium ferricyanide
- potassium ferrocyanide
- potassium hydroxide
- potassium nitrate
- potassium permanganate
- potassium–argon
- potassium–argon dating
- potation
- potato
- potato apple
- potato ball
- potato bean
- potato-beetle
- potato-bing
- potato blight
- potato-bogle
- potato bread
- potato bug
- potato cake
- potato chip
- potato clay
- potato crisp