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n. Material used to refill an excavated area.

v. To refill (an excavated area) with such material.

v. To refill a hole with the material dug out of it.

v. To refill an excavation unit to restore the former ground surface and or to preserve the unit and make it recognizable as having been excavated.

v. To provide reserve support.

v. To replenish or restock due to attrition or loss.

n. The material that has been used to refill an excavation.

n. Reserve support personnel.

n. That which backfills; a replacement.

In engineering, to fill (a depression) with material taken from a cutting.

"Another performance enhancing "substance" has been less publicly discussed but perhaps just as important, if not more, and that is known as backfill bias."

backfilled    backfilling    backfills   

deleteany    rent-bearing    high-k-dielectric    tillable    fissionable