Unit Definition (agate line [Adobe])
Agate is a standard unit of measurement found primarily in newspaper advertising. There are 14 Agates per inch.

Unit Definition (point [Britain, US])
The unit of measure for the height of type, defined as 1/72 of an inch* or 0.3527777778 mm (*small differences occur in this unit between countries, the variables lying between 0.188 and 0.4mm)