pigging

adj, noun — 2 senses

adj

/ˈpɪɡɪŋ/

Damned (used as a mild intensive).

noun

Engineering, Natural sciences, Physical sciences The use of a pig (the device) to clean a pipeline.

The main reason for the high efficiencies obtained over previous piggings can be attributed to the vented swabs with the check valve.1955, American Gas Association, Proceedings, volume 37, page 1083:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.