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[ar-uh-ney-shuh s] /ˌær əˈneɪ ʃəs/
Geology, Petrology. (of rocks) sandlike; sandy.
Botany. growing in sand.
Origin of arenaceous
1640-50; < Latin (h)arēnaceus. See arena, -aceous Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for arenaceous
Historical Examples
  • There is an arenaceous quality in the style which makes progress wearisome.

  • arenaceous Rocks include all sediments in which quartz sand is the most important constituent.

  • But there are other reasons for the comparative paucity of fossils in arenaceous strata, as we shall see presently.

    Geology James Geikie
  • The arenaceous lamin are much hardened at the point of contact, and the clays are converted into siliceous schist.

  • The first are irregular and arenaceous masses, which pile themselves upon plants and solid bodies immerged in fresh water.

    The Ocean World: Louis Figuier
  • Animated with life, this membrane is irritable and encloses the polyp; it becomes friable or arenaceous in drying.

    The Ocean World: Louis Figuier
  • The formation at and in the immediate vicinity of Melbourne, is of tertiary deposits associated with arenaceous older rocks.

  • The Arabs say that, once “submerged” beneath the arenaceous “flood”, a man loses the power to extricate himself.

    The Boy Slaves Mayne Reid
  • Fossil shells, Pterocles, found in arenaceous limestone (Durand).

  • The Arabs say that, once "submerged" beneath the arenaceous "flood," a man loses the power to extricate himself.

    The Boy Slaves Mayne Reid
British Dictionary definitions for arenaceous


(of sedimentary rocks and deposits) composed of sand or sandstone Compare argillaceous, rudaceous
(of plants) growing best in a sandy soil
Word Origin
C17: from Latin harēnāceus sandy, from harēna sand
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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arenaceous in Science
  1. Resembling, derived from, or containing sand.

  2. Growing in sandy areas.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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