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  1. forming, filling, or writing a large volume or many volumes: a voluminous edition.
  2. sufficient to fill a volume or volumes: a voluminous correspondence.
  3. of great volume, size, or extent: voluminous flow of lava.
  4. of ample size, extent, or fullness: voluminous petticoats.
  5. having many coils, convolutions, or windings.
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Origin of voluminous

1605–15; < Late Latin volūminōsus full of folds, equivalent to Latin volūmin- (stem of volūmen) volume + -ōsus -ous
Related formsvo·lu·mi·nous·ly, adverbvo·lu·mi·nous·ness, vo·lu·mi·nos·i·ty [vuh-loo-muh-nos-i-tee] /vəˌlu məˈnɒs ɪ ti/, nounhy·per·vo·lu·mi·nous, adjectivehy·per·vo·lu·mi·nous·ly, adverbhy·per·vo·lu·mi·nous·ness, nounsu·per·vo·lu·mi·nous, adjectivesu·per·vo·lu·mi·nous·ly, adverbun·vo·lu·mi·nous, adjectiveun·vo·lu·mi·nous·ly, adverbun·vo·lu·mi·nous·ness, noun
Can be confusedcompendious voluminous


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for voluminous


  1. of great size, quantity, volume, or extent
  2. (of writing) consisting of or sufficient to fill volumes
  3. prolific in writing or speech
  4. obsolete winding
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Derived Formsvoluminosity (vəˌluːmɪˈnɒsɪtɪ) or voluminousness, nounvoluminously, adverb

Word Origin

C17: from Late Latin volūminōsus full of windings, from volūmen volume
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 voluminous


"forming a large mass," 1610s, from Late Latin voluminosus, from Latin volumen (genitive voluminis) "volume" (see volume). Related: Voluminously.

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Online Etymology Dictionary, © 2010 Douglas Harper