(1）字颔，（2）斜边:（1）是英国印刷字体学的名词。指容纳英文小写字母如g,j,p,q和y的下降部份。

• Beard: (1) In English typographic term, it is that part of a piece of type which accommodates the descender of those lower case letters h,j,p,q and y. ALso called Descender space.