eristävillä

Eristävillä is the plural adessive form of the Finnish adjective eristävä, meaning insulating or isolating. It is used to describe materials, components, or properties that have insulation or isolation capabilities. In technical and construction contexts you will often encounter phrases like eristävillä materiaaleilla or eristävillä pinnoilla to indicate the use of insulating materials or surfaces.

Grammatically, eristävä is an adjective that agrees with a plural noun in number and case. The adessive plural ending -illä (or -illä after consonant stems) marks the sense “with/on the insulating [plural noun].” For example, eristävillä materiaaleilla means with insulating materials, while eristävillä seinillä means on insulating walls. This form helps specify how something is arranged or what materials are being used for insulation.

Important note: eristävillä can be confused with eristävät, which is the third-person plural form of the verb eristää (they insulate) or the nominative plural form of the present participle-adjective eristävä in some contexts. Context usually clarifies whether the word is intended as an adjective modifying a noun or as a verb form.

See also eristää, eristys, eristäminen, and insulation-related terminology in Finnish technical language.