hot spot

or hot·spot



Origin of hot spot

An Americanism dating back to 1925–30



verb (used with object), hot-spot·ted, hot-spot·ting.

to stop (a forest fire) at a hot spot.

Origin of hot-spot

First recorded in 1950–55; v. use of hot spot Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hotspot

Contemporary Examples of hotspot

British Dictionary definitions for hotspot

hot spot


an area of potential violence or political unrest
a lively nightclub or other place of entertainment
an area of great activity of a specific typethe world's economic hot spots
  1. any local area of high temperature in a part of an engine, etc
  2. part of the inlet manifold of a paraffin engine that is heated by exhaust gases to vaporize the fuel
computing a place where wireless internet, esp broadband, services are provided to users of portable computers through a wireless local area network, such as in an airport, railway station, or library
  1. a small area on the surface of or within a body with an exceptionally high concentration of radioactivity or of some chemical or mineral considered harmful
  2. a similar area that generates an abnormal amount of heat, as revealed by thermography
genetics a part of a chromosome that has a tendency for mutation or recombination
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for hotspot

hot spot


also hotspot, 1888 as a skin irritation; 1931 as "nightclub;" 1938 in the firefighting sense; 1941 as "place of international conflict." See hot (adj.) + spot (n.).

Online Etymology Dictionary, © 2010 Douglas Harper

hotspot in Medicine

hot spot


A region in a gene in which there is a high rate of mutation. Its existence depends on the size of the region concerned, the readiness with which the mutation can be detected, and the possibility that selection against mutants at that point is less than that against mutants elsewhere.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

hotspot in Science

hot spot

A volcanic area that forms as a tectonic plate moves over a point heated from deep within the Earth's mantle. The source of the heat is thought to be the decay of radioactive elements. The Hawaiian Islands formed as a series of hot spots. See more at tectonic boundary.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

hotspot in Culture

hot spot

A place deep within the Earth where hot magma rises to just underneath the surface, creating a bulge and volcanic activity (see volcano). The chain of Hawaiian Islands (see Hawaii) is thought to have been created by the movement of a tectonic plate over a hot spot.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.