# scrubbing

Pronunciation: say "SKRUB-ing" /ˈskɹʌbɪŋ/

## Verb

1. Present participle and gerund of scrub. — present participle and gerund of scrub
   - Simple: Present participle and gerund of scrub. Use it after is or was, or as a noun for the action.
   - _She spent the morning scrubbing grout with an old toothbrush._
   - _He kept scrubbing back and forth through the video to find the exact frame._

## Noun

2. A cleaning in which something is rubbed hard, or the action of rubbing something hard to clean it.
   - Simple: Cleaning something by rubbing it hard.
   - _The boat's hull got a thorough scrubbing before it went back into the water._
   - _No amount of scrubbing could lift the red wine out of the carpet._
3. The process of removing impurities from a gas.
   - Simple: Taking unwanted substances out of a gas to make it clean.
   - _Wet scrubbing of the flue gas removes most of the sulfur dioxide before it reaches the stack._
   - _Biogas must undergo scrubbing to strip out carbon dioxide before it can be piped into the grid._

## Origin

Formed from scrub + -ing.

Source: DictionaryAI, https://dictionaryai.com/define/scrubbing (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).