pica
noun /ˈpaɪkə/
/ˈpaɪkə/
(specialist)- a unit for measuring the size of printed letters and the length of a line of printed text
派卡(印刷字母规格和字行长度单位) 词源late 16th cent.: from Anglo-Latin pica (literally ‘magpie’), commonly identified with a 15th-cent. book of rules about Church feasts, but no edition of such a pica printed in “pica” type is known.