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verification. (January 2007) |
In typography, the mean line is the imaginary line at the top of the x-height. [1]
Round glyphs will tend to break ( overshoot) the mean line slightly in many typefaces, since this is aesthetically more pleasing, otherwise curved letters such as a, c, e, m, n, o, r, s, and u will appear visually smaller than flat-topped (or bottomed) characters of equal height, due to an optical illusion.