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dense

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dense

   [dens]
adjective, dens·er, dens·est.
1.
having the component parts closely compacted together; crowded or compact: a dense forest; dense population.
2.
stupid; slow-witted; dull.
3.
intense; extreme: dense ignorance.
4.
relatively opaque; transmitting little light, as a photographic negative, optical glass, or color.
5.
difficult to understand or follow because of being closely packed with ideas or complexities of style: a dense philosophical essay.
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6.
Mathematics. of or pertaining 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.
COLLAPSE
Origin:
1590–1600; < Latin dēnsus thick; cognate with Greek dasýs

Related forms
dense·ly, adverb
dense·ness, noun
non·dense·ness, noun
su·per·dense, adjective
ul·tra·dense, adjective

Synonyms
1. congested, crammed, teeming; impenetrable.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Dense is always a great word to know.
So is rule of three. Does it mean:
the method of finding the fourth term in a proportion when three terms are given
a system of numerical notation to the base 2, in which each place of a number, expressed as 0 or 1, corresponds to a power of 2
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Example Sentences
  • These dense coastal forests harbor a broad cross-section of wildlife species.
  • The dense treetop canopy plunges day into night as we enter the rain forest.
  • The ultra-dense remains of the galaxy's youngest supernova are full of bizarre quantum matter.
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Collins
World English Dictionary
dense (dɛns)
 
—adj
1.  thickly crowded or closely set: a dense crowd
2.  thick; impenetrable: a dense fog
3.  physics having a high density
4.  stupid; dull; obtuse
5.  (of a photographic negative) having many dark or exposed areas
6.  (of an optical glass, colour, etc) transmitting little or no light
 
[C15: from Latin densus thick; related to Greek dasus thickly covered with hair or leaves]
 
'densely
 
—adv
 
'denseness
 
—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

dense
c.1600, from L. densus "thick, crowded." Sense of "stupid" is first recorded 1822.
Online Etymology Dictionary, © 2010 Douglas Harper
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