A hole is a hollow place, an opening in/through a solid body, or an excavation in the ground. Hole or holes may also refer to: == Science and healthcare == Black hole Electron hole, a concept in physics and chemistry K-hole, a psychological state associated with ketamine use Sinkhole, a hole in the ground due to natural subterranean subsidence White hole Wormhole Hole (topology) - in a topological space, a hole is a sphere that cannot be continuously extended to a ball.
A hole is a hollow place, an opening in/through a solid body, or an excavation in the ground. Hole or holes may also refer to: == Science and healthcare == Black hole Electron hole, a concept in physics and chemistry K-hole, a psychological state associated with ketamine use Sinkhole, a hole in the ground due to natural subterranean subsidence White hole Wormhole Hole (topology) - in a topological space, a hole is a sphere that cannot be continuously extended to a ball.
Source: Wikipedia "Hole (disambiguation)" · CC BY-SA 4.0
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