Definition: Still used as a unit of measure in advertising space in some newsletters, an agate line is one column wide by one agate in depth. An agate is 5 1/2 points or 1/14 of an inch. 14 agate lines equal one linear column inch. Because the column width can vary, the overall size of an agate line is not absolute.
Also Known As: Column Inch
Alternate Spellings: agateline | agate-line
