304
Myocardial infarction (MI) Heart attack
National Ambient Air Quality Standards (NAAQS) Air quality standards
adopted by a country
Nephrology Branch of medical science that focuses on the treatment of kidney
conditions as well as abnormalities
Neurodegeneration Progressive loss of function or structure of neurons
Neurology Branch of medical science dealing with disorders of the nervous system
Neutrons Neutral particle of an atom
Night soil Human excreta
Nitrates Compounds of nitrogen and oxygen with three oxygen atom and one
nitrogen atom
Nitric oxide (NO) Gas with one atom of oxygen and one atom of nitrogen
Nitrogen dioxide (NO 2 ) Gas with one two of oxygen and one atom of nitrogen
Non-collinear force Forces that do not have a common line of action
Non-concurrent force Forces whose lines of action of forces do not pass through
a common point
Non-coplanar force Forces acting in different planes are called non-coplanar
forces
Nonparallel force Forces whose lines of action of forces are not parallel to each
other
Non-point source (in the context of pollution) Pollution sources that cannot be
traced back to single point like agriculture, urban area, forestry, and mining
Normal stress Stress generated when a force is applied perpendicular to surface
of a body
Nosocomial infection Transfer of infection from health care establishments to
people individuals
Nucleoid Region in the bacteria cell where DNA is localized
Nucleotide Subunit of DNA or RNA
Nucleus of an atom Dense region at the center of atom comprising of protons and
neutrons
Nutrient loads (in the context of water pollution) Total quantity of nitrogen and
phosphorous entering a water body in a given time
Obstetrics Medical specialization concerned with pregnancy, child birth, as well
as the postpartum period
Ocean acidification Increase in acidity in sea water
Ocean heat uptake efficiency Measure of the global ocean heat storage as global
surface temperature increases
Oleophilic Attracted by oil
Oncology Medical specialization that deals with on the prevention, diagnosis, as
well as treatment of cancer
Open burning (in the context of solid waste) Burning of solid waste without
control on air pollution
Operating cost It is day to day expenditure of an operation of any facility
Ophthalmology Specialization of medicine that deals with the functions, structure, as well as diseases of the eye
Glossary
Myocardial infarction (MI) Heart attack
National Ambient Air Quality Standards (NAAQS) Air quality standards
adopted by a country
Nephrology Branch of medical science that focuses on the treatment of kidney
conditions as well as abnormalities
Neurodegeneration Progressive loss of function or structure of neurons
Neurology Branch of medical science dealing with disorders of the nervous system
Neutrons Neutral particle of an atom
Night soil Human excreta
Nitrates Compounds of nitrogen and oxygen with three oxygen atom and one
nitrogen atom
Nitric oxide (NO) Gas with one atom of oxygen and one atom of nitrogen
Nitrogen dioxide (NO 2 ) Gas with one two of oxygen and one atom of nitrogen
Non-collinear force Forces that do not have a common line of action
Non-concurrent force Forces whose lines of action of forces do not pass through
a common point
Non-coplanar force Forces acting in different planes are called non-coplanar
forces
Nonparallel force Forces whose lines of action of forces are not parallel to each
other
Non-point source (in the context of pollution) Pollution sources that cannot be
traced back to single point like agriculture, urban area, forestry, and mining
Normal stress Stress generated when a force is applied perpendicular to surface
of a body
Nosocomial infection Transfer of infection from health care establishments to
people individuals
Nucleoid Region in the bacteria cell where DNA is localized
Nucleotide Subunit of DNA or RNA
Nucleus of an atom Dense region at the center of atom comprising of protons and
neutrons
Nutrient loads (in the context of water pollution) Total quantity of nitrogen and
phosphorous entering a water body in a given time
Obstetrics Medical specialization concerned with pregnancy, child birth, as well
as the postpartum period
Ocean acidification Increase in acidity in sea water
Ocean heat uptake efficiency Measure of the global ocean heat storage as global
surface temperature increases
Oleophilic Attracted by oil
Oncology Medical specialization that deals with on the prevention, diagnosis, as
well as treatment of cancer
Open burning (in the context of solid waste) Burning of solid waste without
control on air pollution
Operating cost It is day to day expenditure of an operation of any facility
Ophthalmology Specialization of medicine that deals with the functions, structure, as well as diseases of the eye
Glossary