Poistavaa
Poistavaa is a Finnish term formed from the verb poistaa, meaning to remove. It is the present active participle in the -va/-vä family and functions as an adjective or as part of noun phrases describing something that removes or is intended to remove something. The specific form 'poistavaa' is the partitive singular of this participle, used when the noun it modifies is in partitive or of an indefinite quantity.
Morphology and syntax: The participle base is poist-, and adding -ava yields poistava, whose inflection follows
Usage: The term is common in technical and descriptive Finnish, including chemistry, cleaning, remediation, sanitation and