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hot-button

[hot-buht-n]
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adjective
  1. exciting strong feelings; highly charged; emotional: hot-button issues.
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Origin of hot-button

First recorded in 1985–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hot button

hot button

noun
  1. informal
    1. a controversial subject or issue that is likely to arouse strong emotions
    2. (as modifier)the hot-button issue of abortion
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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