基本解释n.[印]十二点活字；[医]异食癖同根派生 英汉例句用作名词 (n.)The pica is approximately 4.21 mm or one-sixth inch.十二点活字尺寸为4.It was a report of pica in calf inducing outbreak of paratyphoid.这是一篇牛犊异食癖引发副伤寒暴发的报道。