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natural depression
 
Noun natural depression has 1 sense
  1. natural depression, depression - a sunken or depressed geological formation
    --1 is a kind of geological formation, formation
    Antonyms: natural elevation, elevation
    --1 has particulars:
     basin; bed, bottom; crater; hole, hollow; lowland; sinkhole, sink, swallow hole; trench, deep, oceanic abyss; trough; valley, vale
natural-born natural-looking natural natural ability natural action natural boundries natural childbirth natural covering natural depression natural disaster natural diszaster natural elevation natural enclosure natural endowment natural energy natural event natural family planning

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