northern phalarope
— Noun
– English
～ breeds in Arctic regions of Old and New Worlds; large flocks often seen far out at sea
natural phenomenon
— Noun
– English
～ all phenomena that are not artificial
natural philosophy
— Noun
– English
～ the science of matter and energy and their interactions; "his favorite subject was physics"
nicotinamide adenine dinucleotide phosphate
— Noun
– English
～ a coenzyme similar to NAD and present in most living cells but serves as a reductant in different metabolic processes
news photography
— Noun
– English
～ photography of newsworthy events
nominal phrase
— Noun
– English
～ a phrase that can function as the subject or object of a verb
noun phrase
— Noun
– English
～ a phrase that can function as the subject or object of a verb
nervus phrenicus
— Noun
– English
～ one of a pair of nerves that arises from cervical spinal roots and passes down the thorax to innervate the diaphragm and control breathing
Nicandra physaloides
— Noun
– English
～ coarse South American herb grown for its blue-and-white flowers followed by a bladderlike fruit enclosing a dry berry
nuclear physicist
— Noun
– English
～ a physicist who specializes in nuclear physics
nuclear physics
— Noun
– English
～ the branch of physics that studies the internal structure of atomic nuclei
Niemann-Pick disease
— Noun
– English
～ a disorder of lipid metabolism that is inherited as an autosomal recessive trait