The tag alias #51290 cross-section -> cross_section has been approved.

Reason: .. or possibly reversed (need to also update the alias for 'crosssection' in that case)

Personally I think 'cross-section' is the more correct form.

EDIT: The tag alias cross-section -> cross_section (forum #307200) has been approved by @Millcore.

Actually, it seems `cross_section` is indeed the correct form, so this'll work.

The tag alias cross-section -> cross_section (forum #307200) has been approved by @Millcore.