The unit of measure in printing The standard is a pica M; and the width of a line is measured by the number of such M's that would stand side by side in the "stick " This dictionary is in double columns, each column equals 11 pica M's in width, and one M is allowed for the space between Some work is made up to 10 1/2, 20 1/2, etc , ems; and for the half-em printers employ the letter N, which is in width half a letter M As no letter is wider than the M, and all narrower letters are fractions of it, this letter forms a very convenient standard for printing purposes
A linear unit equal to the point size of the font In a 10 point font, the em will be 10 points An em-space is white-space that is as wide as the point size An em-dash is a horizontal bar that is as wide as the point size An em-square is a square one em to each side In traditional typograph (when each letter was cast in metal) the glyph had to be drawn within the em-square
An em is a typographers unit of measurement that is proportioned to the width of a capital letter "M " It will vary from font to font and will also vary with the point size of the font
In composition, a unit of measurement exactly as wide and high as the point size being set So named because the letter “M” in early fonts was usually cast on a square body
A measurement of linear space used by typographers in which the unit is as wide and as high as the point size being set; twice the width of an en So named because the letter "m" in early fonts was usually cast on a square body
The portion of a line formerly occupied by the letter m, then a square type, used as a unit by which to measure the amount of printed matter on a page; the square of the body of a type
A unit of measurement equal to the current type size, e g , an em in 12-point type is equal to 12 points Originally derived from the width of the upper-case M