pretreatment
noun
- The act of treating once, usually with a chemical, before the main cure
Wiktionary
adj
Etymology: Etymology tree Proto-Indo-European *per- Proto-Indo-European *preh₂- Proto-Indo-European *-i Proto-Indo-European *préh₂i? Proto-Italic *prai Proto-Italic *prai- Latin prae-lbor. Middle English pre- English pre- English treatment English pretreatment From pre- + treatment.
- Prior to treatment.
noun
Etymology: Etymology tree Proto-Indo-European *per- Proto-Indo-European *preh₂- Proto-Indo-European *-i Proto-Indo-European *préh₂i? Proto-Italic *prai Proto-Italic *prai- Latin prae-lbor. Middle English pre- English pre- English treatment English pretreatment From pre- + treatment.
- Any treatment received before some other process.