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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.
  6. 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.
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Origin of dense

1590–1600; < Latin dēnsus thick; cognate with Greek dasýs
Related formsdense·ly, adverbdense·ness, nounnon·dense·ness, nounsu·per·dense, adjectiveul·tra·dense, adjective

Synonyms

1. congested, crammed, teeming; impenetrable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ultradense

Contemporary Examples


British Dictionary definitions for ultradense

dense

adjective
  1. thickly crowded or closely seta dense crowd
  2. thick; impenetrablea 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
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Derived Formsdensely, adverbdenseness, 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

Word Origin and History for ultradense

dense

adj.

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.

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Online Etymology Dictionary, © 2010 Douglas Harper