hot spot

noun

: a very popular or active place

: a place where there is much danger or fighting

Full Definition of HOT SPOT

: a place of more than usual interest, activity, or popularity <birding hot spots>

: a place in the upper mantle of the earth at which hot magma from the lower mantle upwells to melt through the crust usually in the interior of a tectonic plate to form a volcanic feature; also : a place in the crust overlying a hot spot

: an area of political, military, or civil unrest usually considered dangerous <global hot spots>

: a place where a wireless Internet connection is available

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First Known Use of HOT SPOT

1929

Medical Dictionary

hot spot

noun

Medical Definition of HOT SPOT

: a patch of painful moist inflamed skin on a domestic animal and especially a dog that starts as a response to a skin irritant (as an allergen or an insect or tick bite), that is rapidly worsened by scratching, chewing, or licking the affected area, and that may become seriously infected if not promptly cleaned and medicated

: a site in genetic material (as DNA or a chromosome) having a high frequency of mutation or recombination