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siliciferous

[sil-uh-sif-er-uh s]
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adjective
  1. containing, combined with, or producing silica.
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Origin of siliciferous

First recorded in 1790–1800; silic(a) + -i- + -ferous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for siliciferous

siliciferous

adjective
  1. containing or yielding silicon or silica
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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