Wiktionary
nanograms
n. (plural of nanogram English)
Usage examples of "nanograms".
Briggs asked how much 11 nanograms was, and Middleberg said that one joint—a typical cigarette—would leave about 25 to 50 nanograms per milliliter of blood.
But if someone is taking enough to get twenty-nine hundred nanograms per milliliter, they’re getting to that level, ahh, it is within that realm at which we have found that people die.
And in August 1985, they made a few nanograms of it, detected it with mass spectrometers, and had the honor of naming it, along with their colleagues Harry Kroto, Jim Heath and Sean O'Brien.