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Definition of "lemming" []

  • Any of various small, thickset rodents, especially of the genus Lemmus, inhabiting northern regions and known for periodic mass migrations that sometimes end in drowning. (noun)
  • Any of various volelike rodents of the genus Lemmus and related genera, of northern and arctic regions of Europe, Asia, and North America: family Cricetidae. The Scandinavian variety, Lemmus lemmus, migrates periodically when its population reaches a peak (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • A member of any large group following an unthinking course towards mass destruction (noun)

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Use "lemming" in a sentence
  • "The hypocrit clearly laudes his/her lemming-like following of the Republican party and in lemming-like fashion claims to be a proud member of the party of no. wow!"
  • "I'm not calling the lemming behavior a mental disorder."
  • "She has a tremendous following, the so-called lemming vote."