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backfill - 2 dictionary results

back⋅fill

[bak-fil]
–noun
1. material used for refilling an excavation.
–verb (used with object)
2. to refill (an excavation).

Origin:
1950–55; back 2 + fill
back·fill   (bāk'fĭl')   
n.  Material used to refill an excavated area.
tr.v.   back·filled, back·fill·ing, back·fills
To refill (an excavated area) with such material.
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