kierteellisiä
Kierteellisiä is a Finnish term that functions as a plural adjective meaning spiral- or coil-shaped items, and can be used as a descriptive label for multiple spiral forms. It derives from the adjective kierteellinen, which in turn comes from kiertää (to turn) and kierre (a coil or thread). The form kierteellisiä appears in contexts where several spiral elements are being referenced.
In usage, kierteellisiä describes objects or patterns that exhibit a helical or winding geometry. For example,
Because kierteellisiä is an inflected plural adjective, its exact form matches the noun it modifies in number