From Longman Dictionary of Contemporary Englishhot spothot spot, hotspot /ˈhɒtspɒt $ ˈhɑːtspɑːt/ noun [countable] 1 a place where there is a lot of heat or radiation Many microwaves heat unevenly, leading to hot spots in the milk. Hot spots of radioactivity were found near the power station.2 a place that is popular for entertainment or a particular activity They played regularly at legendary hot spots such as the UFO Club.3 a place where there is likely to be fighting or a particular problem The report identified eight pollution hot spots.4 a part of a computer image on the screen that you can click on to make other pictures, words etc appear5 a place in a public building where there is a computer system with an access point, which allows people in the building with a wireless computer or bluetooth mobile phone to connect to a service such as the Internet6 especially American English a place where a fire can spread from
Examples from the Corpus
hot spot• The surge capability is needed because carriers are often the first to arrive at a hot spot, the admiral said.• Occasionally a hot spot would erupt and an orange halo would expand into the night. 