material used for refilling an excavation.
verb (used with object)
to refill (an excavation).
Origin of backfill
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(tr) to refill an excavated trench, esp (in archaeology) at the end of an investigation
the soil used to do this
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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