Noun: em em
- (printing) a unit of measurement used in typesetting, equal to the point size of the current font
"The designer used an em quad to create consistent spacing in the layout";
- em quad, mutton quad
- A linear unit (1/6 inch) used in printing
"The typesetter adjusted the spacing by one pica em";
- pica em, pica
- The 13th letter of the Roman alphabet
- M, m
Derived forms: ems
Type of: alphabetic character, area unit, letter, letter of the alphabet, linear measure, linear unit, square measure
Part of: in, inch, Latin alphabet, Roman alphabet
Encyclopedia: Em, David