Myrkyllistä

Myrkyllistä is the partitive singular form of the Finnish adjective myrkyllinen, meaning poisonous or toxic. In Finnish, adjectives decline to agree with the nouns they modify, and the partitive form is used in several constructions, including predicative complements after the verb olla and when describing indefinite quantities or mass nouns. Esimerkkejä: Vesi on myrkyllistä. Tämä kasviperä on myrkyllistä ainetta.

Grammatically, myrkyllinen has several forms: nominative singular myrkyllinen, partitive singular myrkyllistä, genitive myrkyllisen, plural nominative myrkylliset, and partitive plural myrkyllisiä. The partitive form myrkyllistä is common with substances or amounts described as poisonous, and it appears in phrases such as myrkyllistä jätettä or veden myrkyllinen koostumus expressed in partitive contexts.

Etymology and related forms: the word derives from myrkky, meaning poison, plus the suffix -llinen, which conveys the sense of “having the quality of.” The related adverb is myrkyllisesti (poisonously), and the noun form myrkky refers to poison in general. Common safety and toxicology language may use myrkyllistä to describe a substance, a mixture, or a biological sample that is poisonous.

Usage notes: myrkyllistä is a descriptive term applied to substances, materials, or organisms that pose toxic risks. Its meaning is close to “poisonous” in English, and it is used in both everyday language and formal safety communications, often in predicative constructions after olla or in phrases describing quantities.