Wiktionary
infinity pool
n. (alternative form of infinity-edge pool English)
Wikipedia
Infinity pool
An infinity edge pool (also named negative edge, zero edge, infinity pool, disappearing edge, or vanishing edge pool) is a reflecting or swimming pool where the water flows over one or more edges, producing a visual effect of water with no boundary. Such pools are often designed such that the edge appears to merge with a larger body of water such as the ocean, or with the sky. They are often seen at exotic resorts and exclusive estates, in advertisements, and in other luxurious places.
Usage examples of "infinity pool".
The dogs were looking intently into the darkness past the Infinity Pool, growling, their tongues like big red diapers hanging out of their mouths.