pica

n 1 one of the sizes of letters used in typewriting (ten letters per inch) 英文打字机上相当於12点活字的字型（每英寸10个字母）. 2 (in printing) unit of measurement for type2(1) （印刷）12点活字.

physically, physician, physicist, physics, physiognomy, physiological, physiologist, physiology, physiotherapist, physiotherapy, physique, pi, pianissimo, pianist, piano, piano-accordion, pianola (also Pianola), piastre (US piaster), piazza, pibroch, picador, picaresque, Piccadilly, piccalilli, piccaninny, piccolo, pick, pick off, pick on sb, pick out, pick sb/sth out, pick sth over, pick up, pick-a-back, pick-a-back (also piggyback), pick-me-up, pick-up, picker, picket, pickings,