säteilevillä

Säteilevillä is a Finnish grammatical form used to describe multiple radiating or emitting objects in the adessive case. It is the plural adessive form of the present active participle or adjective säteilevä, which comes from the verb säteillä meaning “to radiate” or “to shine.” In Finnish, adjectives and participles agree with the nouns they modify in number and case, so säteilevä takes the adessive plural ending -illä when referring to several nouns in the adessive.

In practice, säteilevillä appears as part of a noun phrase that denotes location or state. The core idea is that the described objects have radiating properties and are located on or at something expressed by the noun in the rest of the phrase. For example, säteilevillä pinnoilla would translate to “on radiating surfaces” or “on radiating surfaces’” depending on context. Similarly, säteilevillä tavoilla would mean “in radiating ways” when discussing manner or process in a plural sense, though the exact phrasing depends on the accompanying noun.

Usage notes:

- It is most common in descriptive, scientific, or technical language where properties like radiation, emission, or light emission are being described for multiple items.

- The singular counterpart is säteilevällä (on a radiating surface), and the other plural/adessive forms follow standard Finnish inflection patterns for adjectives and participles.

Etymology:

- Säteily (radiation) + -läve form from säteillä (to radiate) + plural adessive -illä, resulting in the form säteilevillä when used with plural nouns in the adessive case.

See also: säteillä, säteily, säteilevä, Finnish grammar, adessive case.