This is so funny (sorry) translated in Excel 2016 for Mac:
In the Danish Excel 2016 for Windows it is called "Pivottabelfelter"—it is the "PivotTable Fields" task pane.
It is actually so funny you should try to Bing/Google it yourself—it means "White and black half circle" ;)
macOS High Sierra
Excel 16.9 (171212)
Hi @Jørgen Koch - Thanks for letting us know. Our Danish moderator will investigate this one and we will report back to you in our Competition Power BI Dashboard. Regards, Stafford