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[dens] /dɛns/
adjective, denser, densest.
having the component parts closely compacted together; crowded or compact:
a dense forest; dense population.
stupid; slow-witted; dull.
intense; extreme:
dense ignorance.
relatively opaque; transmitting little light, as a photographic negative, optical glass, or color.
difficult to understand or follow because of being closely packed with ideas or complexities of style:
a dense philosophical essay.
Mathematics. of or relating to a subset of a topological space in which every neighborhood of every point in the space contains at least one point of the subset.
Origin of dense
1590-1600; < Latin dēnsus thick; cognate with Greek dasýs
Related forms
densely, adverb
denseness, noun
nondenseness, noun
superdense, adjective
ultradense, adjective
1. congested, crammed, teeming; impenetrable. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for densest
Historical Examples
  • There are men that the densest crowd will part and make way for.

    The Manxman Hall Caine
  • The growth was of the densest, mile after mile of dense growth.

    The Long Roll Mary Johnston
  • They were passing through one of the densest parts of the great forest.

    The Kentucky Ranger Edward T. Curnick
  • The people were pouring from the theatres, and I sought the densest throng.

  • He was always looking at the ground; in the densest crowds he seemed to be alone.

    The Goose Man Jacob Wassermann
  • The olive and walnut orchards were clad in foliage of densest green.

    Across America James F. Rusling
  • Theres the densest kind of a fog from one end of Pennsylvania to the other.

    The Flying Reporter

    Lewis E. (Lewis Edwin) Theiss
  • The densest, hardest, and most lustrous of all kinds of pitcoal.

  • He was more helpless than a ship sailing in the densest of fogs.

    Inventions of the Great War

    A. Russell (Alexander Russell) Bond
  • The ages that intervened were, as a whole, times of the densest superstition.

    Steam Steel and Electricity James W. Steele
British Dictionary definitions for densest


thickly crowded or closely set: a dense crowd
thick; impenetrable: a dense fog
(physics) having a high density
stupid; dull; obtuse
(of a photographic negative) having many dark or exposed areas
(of an optical glass, colour, etc) transmitting little or no light
Derived Forms
densely, adverb
denseness, noun
Word Origin
C15: from Latin densus thick; related to Greek dasus thickly covered with hair or leaves
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 densest



early 15c., from Middle French dense and directly from Latin densus "thick, crowded; cloudy," perhaps from PIE root *dens- "dense, thick" (cf. Greek dasus "hairy, shaggy"). Sense of "stupid" is first recorded 1822.

Online Etymology Dictionary, © 2010 Douglas Harper
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