纳米材料 nàmǐcáiliào nanomaterial Origin Definitions Defs Strokes Stroke Words Sentences Sents 纳米 納米 nàmǐ nanometer A unit of length equal to one billionth of a meter; also used as the prefix "nano-" for things related to nanotechnology.材料 cáiliào noun material raw material; physical substance used for making or doing something