backfill

[ bak-fil ]
/ ˈbækˌfɪl /

noun

material used for refilling an excavation.

verb (used with object)

to refill (an excavation).

Origin of backfill

First recorded in 1950–55; back2 + fill

Words nearby backfill

backer, backer-up, backfall, backfield, backfile, backfill, backfire, backfist, backfit, backflap hinge, backflash

British Dictionary definitions for backfill

backfill
/ (ˈbækˌfɪl) /

verb

(tr) to refill an excavated trench, esp (in archaeology) at the end of an investigation

noun

the soil used to do this