| has gloss | (noun) a sunken or depressed geological formation
depression, natural depression |
| lexicalization | eng: depression |
| lexicalization | eng: natural depression |
| subclass of | (noun) (geology) the geological features of the earth
geological formation, formation |
| has subclass | (noun) a natural depression in the surface of the land often with a lake at the bottom of it; "the basin of the Great Salt Lake"
basin |
| has subclass | (noun) a depression forming the ground under a body of water; "he searched for treasure on the ocean bed"
bottom, bed |
| has subclass | (noun) a bowl-shaped depression formed by the impact of a meteorite or bomb
crater |
| has subclass | (noun) a depression hollowed out of solid matter
hole, hollow |
| has subclass | (noun) low level country
lowland |
| has subclass | (noun) a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof
sinkhole, sink, swallow hole |
| has subclass | (noun) a long steep-sided depression in the ocean floor
oceanic abyss, trench, deep |
| has subclass | (noun) a narrow depression (as in the earth or between ocean waves or in the ocean bed)
trough |
| has subclass | (noun) a long depression in the surface of the land that usually contains a river
vale, valley |