Glossary
Find Definition by Term and/or Language
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NISB
National Institute of Building Sciences -
NIST
National Institute for Standards and Technology -
Nitrate
The only form in which nitrogen can be used directly by plants; a component of chemical fertilizers. -
Nitrite
A salt or ester of nitrous acid. -
Nitrogen Fixation
A biological process (usually associated with plants) whereby certain bacteria convert nitrogen in the air to ammonia, thus forming a nutrient essential for growth. -
Nitrogenous Base
The purines (adenine and guanine) and pyrimidines (thymine, cytosine and uracil) that form DNA and RNA molecules. -
NK
Natural Killer Cells -
NLM
National Library of Medicine -
NM
New Molecule -
NME
New Molecular Entity -
NMI
Non-Maskable Interrupt -
NMOS
N-Channel MOS -
NMR
Nuclear Magnetic Resonance -
NMRS
Nuclear Magnetic Resonance Spectroscopy -
NNFA
National Nutritional Foods Association -
NNTP
Net News Transport Protocol -
No Impact System
System that will not have any impact, either directly or indirectly, on product quality. These systems are designed and commissioned following Good Engineering Practice only. -
No Impact System
System that will not have any impact, either directly or indirectly, on product quality. These systems are designed and commissioned following Good Engineering Practice only. -
No Impact System (or Facility)
A system or facility that is not expected to directly or indirectly impact product quality. -
No-Observed-Adverse-Effect (NOAEL)
The dose intoxicology study which produces no adverse effect. -
No-Observed-Effect Level
(ICH Q3C (R4)) The highest dose of substance at which there are no biologically significant increases in frequency or severity of any effects in the exposed humans or animals. -
NOAA
National Oceanic and Atmospheric Administration (United States) -
NOAEL
No-Observed-Adverse-Effect Level -
Node
A junction or connection point in a network, e.g. a terminal or a computer. -
NOEL
No-Observed-Effect-Level