backfill

Definition from Wiktionary, a free dictionary

[edit] English

[edit] Verb

to backfill (third-person singular simple present backfills, present participle backfilling, simple past and past participle backfilled)

1. To refill a hole with the material dug out of it.
2. (US) to provide reserve support.

[edit] Noun

backfill (plural backfills)

1. The material that has been used to refill an excavation.
2. (US) reserve support personnel.