neat line

noun

a line defining a limit or edge of an excavation, cut stone, etc.

Also called net line.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for neat line

Historical Examples of neat line

The size of the map, within the neat-line of the border, is to be given in inches and tenths.
Smithsonian Report on the Construction of Catalogues of Libraries and their Publication by Means of Separate, Stereotyped Titles
Charles C. Jewett