Wiktionary:Word of the day/2021/August 29

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Word of the day
for August 29
hot spot n
  1. A location which has a higher temperature or amount of radiation than surrounding areas.
    1. (firefighting, forestry) A part of a forest fire which is burning actively.
    2. (geology, planetology) The surface manifestation of a plume of molten material that rises from deep in a celestial body's mantle.
    3. (nuclear physics) An area of high radioactive contamination.
    4. (optics) Synonym of heiligenschein (“an optical phenomenon which creates a bright spot around the shadow of the viewer's head, when the surface on which the shadow falls has special optical characteristics”)
  2. (figuratively) A place notable for a high level of activity or danger.
    1. A dangerous place of violent political unrest.
    2. A lively and entertaining place, such as a nightclub.
    3. (computing)
      1. A part of an application that consumes a significant amount of execution time.
      2. (graphical user interface) A part of a control (“an interactive interface element”) that responds dynamically as a user moves a pointer over it (for example, a part of an image map that contains a hyperlink which can be clicked on with a cursor).
      3. (Internet, networking) A location in which Wi-Fi Internet access is available.
    4. (ecology) Short for biodiversity hotspot (“a place with a significant level of biodiversity, particularly if the flora and fauna are threatened with loss of their habitat”).
    5. (genetics) The region of a gene in which there is a higher than normal rate of mutation.
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