Glossary Term Definition
An individual piece of metal type; by extension, any single typographic character or glyph in a font.
Definition
An individual piece of metal type. By extension, any single typographic character or glyph in a font. The word survives in the expression "out of sorts," meaning a compositor who has run out of a particular character.
Source
No access — Robert Bringhurst — p. 330:
An individual piece of metal type.