parting line

noun

, Metallurgy.

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

Word History and Origins

Origin of parting line¹

First recorded in 1870–75

Example Sentences

All the patterns should taper slightly from the parting line.

From Project Gutenberg

Such partings of the field often cut through charges whose colours change about on either side of the parting line.

From Project Gutenberg

Around its source, which is the true centre of the Pyrenees, is the parting line between the Mediterranean and the Atlantic.

From Project Gutenberg