Definition of nanogram in English:
One billionth of a gram.
- In oral fluid, drugs of abuse can be detected for 5-48 hours at a low nanogram per milliliter level.
- The North Pacific contains about 1 nanogram of PCBs per litre.
- He tested positive for the banned substance methamphetamine when a nanogram of the chemical was detected in his urine sample.
Definition of nanogram in:
- British & World English dictionary
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