奈米科学 nàimǐkēxué nanoscience Origin Definitions Defs Strokes Stroke Words Sentences Sents 奈米 nàimǐ nanometer unit of length equal to one billionth of a meter; also used as a prefix for things at the nanoscale (Taiwan)科学 科學 kēxué noun science science; scientific knowledge; a system of knowledge about the laws of nature, society, and thought