A 'hot spot' is a region of high or special activity within a larger area of low or normal activity; it may refer to:
in geology
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Hotspot (geology), a location above a hot upwelling plume of mantle.
in computer science
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Hotspot (program), a set of computer instructions executed so frequently that, in older architectures, the memory chips could actually have a spot of higher temperature.
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Hotspot (database), a frequently accessed data item or object in a database
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Hotspot (Wi-Fi), a Wi-Fi access point or area, in particular for connecting to the Internet
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HotSpot, a Java Virtual Machine from Sun Microsystems
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Screen hotspots, especially in GUI applications, provide areas on which computer-users click or hover for extra information-processing
in biology
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Biodiversity hotspot, a region of significant biodiversity threatened with destruction
★ "hotspots",
DNA positions where
mutations occur very frequently
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Recombination hotspot
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Pyotraumatic dermatitis, a canine skin disorder
in arts and entertainment
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Hot Spot (cricket), a infra-red tracking system used in cricket
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''Hot Spot'' (musical), a 1963 musical with lyrics by Martin Charnin and music by Mary Rodgers
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Hot Spot (song), a song by hip-hop rap artist Foxy Brown
★ ''
The Hot Spot'', a 1990 film with Don Johnson and Jennifer Connelly
★ "The Hotspot" is a weekly podcast by the editors of
GameSpot discussing various gaming-related news and events
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Hotspot (stage lighting), the center of a beam of light from a
stage lighting instrument that is brighter than the surrounding light
Fictional
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Hot Spot (comics), is a fictional character in publications from DC Comics
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Hot Spot (Transformers) is the name of several Transformers characters
Lottery
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Hot Spot, a
keno game offered by the California Lottery