noun🔗Share나노그램A unit of mass equal to 0.000 000 001 grams. Symbol: ng"The lab test detected only a few nanograms of the pesticide in the apple. "실험실 검사에서 사과에서 살충제의 나노그램 몇 개만 검출되었습니다.massunitscienceChat with AIVocabulary GamePractice Reading
