parting line

noun Metallurgy.

the line at which two closed dies or two halves of a mold meet.
a corresponding line or seam appearing on a molded or cast object.

Origin of parting line

First recorded in 1870–75

Words nearby parting line

particulate, particulate inheritance, partier, parting, parting is such sweet sorrow, parting line, parting of the ways, parting shot, parting strip, partis, partisan