Spiraaleilla

Spiraaleilla is the plural adessive form of the Finnish noun spiraali, meaning spiral. It is used to refer to something located on or at spirals, or decorated with spirals, when the subject is plural. The form is created by combining the plural stem spiraali with the adessive ending -lla, resulting in spiraaleilla. In Finnish, this grammatical construction signals placement, surface, or association with multiple spiral shapes.

In usage, spiraaleilla appears in descriptions of patterns, ornaments, and diagrams that feature several spirals, as well as in contexts where spirals function as a design element or motif. It is a grammatical inflection rather than a separate concept, and it often coexists with other constructions depending on what is being described.

Examples (Finnish with rough translations):

- Kuviossa on useita spiraaleilla koristeltuja ympyröitä. (The pattern contains several circles decorated with spirals.)

- Kartalla on reittejä, jotka on merkitty spiraaleilla. (The map shows routes marked by spirals.)

In everyday Finnish, speakers may also use forms like spiraaleja or spiraaleista when referring to spirals as objects or in different syntactic roles. Spiraaleilla thus serves as a common grammatical tool for describing relationships to multiple spiral shapes without introducing a separate lexical term. See also spiraali for the base noun and related terms describing spiral patterns or forms.