一毫 yīháo a tiny bit Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 一粒芥菜的种子大约有一毫米大小。 yī lì jiècài de zhǒngzi dàyuē yǒu yī háomǐ dàxiǎo. A mustard seed is approximately 1 millimeter in size. Source: CCMatrix