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one billionth (10−9) of a gram.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

nan·o·gram (ng),

One billionth of a gram (10-9 g).
Farlex Partner Medical Dictionary © Farlex 2012


(ng) (nan'ō-gram)
One billionth of a gram (10-9 g).
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


One billionth of a gram.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
The inks leverage NanoGram's laser pyrolysis-based Nanoparticle Manufacturing (NPM) process for high volume production of crystalline silicon nanoparticles.
"NanoGram is an agile company creating new market opportunities by understanding the needs of our customers and partners," said NanoGram President and CEO Dr.
For urine tests, 10 nanograms per milliliter indicates impairment, and for blood tests, 2 nanograms per milliliter does.
Consider this: a grain of salt weighs 58,500 nanograms. It takes only 15 nanograms of pesticide to kill a honey bee.
For the study, the researchers identified the minimum healthy level of 25-hydroxyvitamin D in blood plasma to be 30 nanograms per milliliter.
World Anti Doping Agency rules state that concentration of salbutamol must not exceed 1,000 nanograms per millilitre (ng/ml).
A quarter of the patients who had troponin levels of 50 nanograms per litre (ng/l) or above before their surgery died within six months, the researchers found.
Previously, the ambient air standard for polychlorinated biphenyls--the measurement of acceptable air quality--was 5 nanograms per cubic meter during a 24-hour period.
capable of having a biological effect on the body, at a level of four nanograms per millilitre of urine.
To overcome the challenges of traditional SNP genotyping, the new IFC needs as little as 5.5 nanograms of DNA at a concentration of 2.5 nanograms per microliter of sample (human genomic DNA equivalent).
Payton cooperated, and the test put his THC level at 8.6 nanograms per milliliter, well above the five-nanogram limit established by I-502.
In a pooled analysis of all participants, subjects whose vitamin D levels were classified as high at an average of 30 nanograms per milliliter experienced a 44% reduction in breast cancer mortality risk when compared to those whose levels were low at 17 nanograms per milliliter.