Definition of pica noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈpaɪkə//
; NAmE NAmE//ˈpaɪkə//
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a unit for measuring the size of printed letters and the length of a line of printed text Word Originlate 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.
See the Oxford Advanced American Dictionary entry: pica