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[pluhm-it] /ˈplʌm ɪt/
Also called plumb bob. a piece of lead or some other weight attached to a line, used for determining perpendicularity, for sounding, etc.; the bob of a plumb line.
something that weighs down or depresses.
verb (used without object)
to plunge.
1350-1400; (noun) Middle English plommet < Middle French, diminutive of plomb lead; (v.) derivative of the noun See plumb, -et
Related forms
unplummeted, adjective
3. fall, dive, drop, swoop. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for plummeting
  • Well before the plummeting value of the dollar was a hot topic, the movement to abolish the penny had been gaining currency.
  • The price of the software that enables such learning experiences is plummeting.
  • But the firm's problems have extended beyond plummeting sales.
  • And with prices now plummeting one might predict a return to the age of abundant, cheap fossil fuel.
  • Now, however, the gray seals are thriving while harbor seal populations are plummeting.
  • Consumer spending on appliances and autos is also plummeting.
  • The result was a vast oversupply, which led to plummeting prices.
  • The company hadn't introduced a truly new product in three years, and its stock price was plummeting.
  • Economic development, historical preservation and plummeting crime rates in the area have contributed to a kind of boom.
  • Eventually, this meteor began plummeting through the atmosphere.
British Dictionary definitions for plummeting


verb -mets, -meting, -meted
(intransitive) to drop down; plunge
another word for plumb bob
a lead plumb used by anglers to determine the depth of water
Word Origin
C14: from Old French plommet ball of lead, from plomb lead, from Latin plumbum
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
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Word Origin and History for plummeting



late 14c., "ball of lead, plumb of a bob-line," from Old French plomet "graphite, lead; plummet, sounding lead," diminutive of plom "sounding lead" (see plumb (n.)).


1620s, "to fathom, take soundings," from plummet (n.). Meaning "to fall rapidly" first recorded 1933, perhaps originally among aviators. Related: Plummeted; plummeting.

Online Etymology Dictionary, © 2010 Douglas Harper
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