Sammuttavaa

Sammuttavaa is the partitive singular form of the present active participle samuttava, derived from the verb sammuta­ta meaning to extinguish or put out a fire. The form functions as an adjective describing something that extinguishes or is used to extinguish fire. In Finnish, participles behave like adjectives and are declined to agree with the noun they modify; the partitive form sammuttavaa is used when the noun is in partitive or in indefinite reference, or in negative clauses.

Sammuttavaa is commonly found in contexts related to fire safety and extinguishing agents. It can describe substances, tools or actions intended to stop a fire, for example in phrases such as sammuttavaa ainetta (extinguishing agent) or sammuttavaa vettä in broader, less common formulations. The word occurs alongside related forms such as sammutettava (the base participle form) and the noun sammuttus or sammutus (extinguishing, the act). The term sammuttaja refers to an extinguisher or device that extinguishes.

In usage, the partitive sammuttavaa is selected when the object is not a definite thing or in contexts where the action or substance is described in a general, noncountable sense. The form is frequent in safety standards, lab instructions and product descriptions for extinguishing agents and equipment.