Yhdisteisistä

Yhdisteisistä is a Finnish word that functions as the elative plural form of the noun yhdiste, meaning a chemical compound or, more generally, a substance formed by combining elements or components. The elative case expresses origin or source, so yhdisteisistä translates to “from the compounds” or “out of the compounds.” The singular elative form is yhdisteestä, and the nominative plural is yhdisteet.

In usage, yhdisteisistä appears mainly in scientific and formal writing when referring to data, samples, or observations derived from multiple compounds. It helps specify that the sources or materials come from a group of compounds rather than from a single one. The term is distinct from phrases related to mixtures or alloys and is typically contrasted with seos (mixture) and yhdisteet (the compounds, plural nominative).

Examples:

- Tutkimuksessa analysoitiin yhdisteisistä peräisin olevia näytteitä. (In the study, samples derived from the compounds were analyzed.)

- Yhdisteisistä löytyi useita uusia ominaisuuksia. (Several new properties were found from the compounds.)

Notes:

- The word is primarily used in chemistry and related sciences, where precise reference to sources among multiple compounds is needed.

- Related terms include yhdisteet (the compounds) and seos (mixture), which refer to different concepts in chemistry.