separatrix

The ⟨L⟩ or pipe ⟨|⟩ mark formerly used to divide integers from decimals.

Therefore in writing of decimall parts let the separatrix be always used.

Synonym of decimal point, which replaced such marks.

The proofreader's mark resembling a slash ⟨ / ⟩ or vertical bar ⟨ | ⟩ placed after a note in the margin to indicate that it should replace the item(s) struckthrough in the running text or to separate it from other margin notes.

A terminator: a line on a partially-illuminated surface separating the lit and shaded regions.

The line between regions having different magnetic fields.