| nuclear-cytoplasmic ratio | Ratio of volume of nucleus to volume of cytoplasm, fairly constant for a particular cell type and usually increased in malignant neoplasms. (05 Mar 2000) |
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| nuclease | <enzyme> An enzyme capable of cleaving the phosphodiester bonds between nucleotide subunits of nucleic acids. (18 Nov 1997) |
| nucleate | A salt of a nucleic acid. (05 Mar 2000) |
| nucleate endonuclease | A nuclease (a nucleate oligonucleotidohydrolase) that forms oligonucleotides ending in 5'-phosphates from RNA and DNA; hydrolyzes both double-stranded and single-stranded polynucleic acids. Synonym: nucleate endonuclease. (05 Mar 2000) |
| nucleated | Provided with a nucleus, a characteristic of all true cells. (05 Mar 2000) |
| nucleation | <molecular biology> A general term used in polymerisation or assembly reactions where the first steps are energetically less favoured than the continuation of growth. Polymerisation is much faster if a pre formed seed is used to nucleate growth. (e.g. Microtubule growth is nucleated from the microtubule organising centre, although the nature of this nucleation is not known). (18 Nov 1997) |
| nuclei | Plural of nucleus. (05 Mar 2000) |
| nuclei anteriores thalami | Collective term for three groups of nerve cells which together form the anterior thalamic tubercle: the anteroventral nuclei, a relatively large nucleus; the anteromedial nuclei; and the anterodorsal nuclei, a small (but large-celled) nucleus. The nuclei receive the mamillothalamic tract from the mamillary body, and additional afferents by way of the fornix; they project collectively to the cortex of the cingulate and parahippocampal gyrus. Synonym: nuclei anteriores thalami. (05 Mar 2000) |
| nuclei arcuati | A variable assembly of small cell groups, probably outlying components of the pontine nuclei, on the ventral and medial aspects of the pyramid in the medulla oblongata. Synonym: nuclei arcuati. (05 Mar 2000) |
| nuclei basales | Nucleus of the cerebral hemisphere that originally included the caudate and lenticular nuclei, the claustrum and the amygdaloid body (complex); functionally the term basal nuclei now specifies the caudate and lenticular nuclei and adjacent cell groups having important connections therewith (subthalamic nucleus; substantia nigra, partes compacta and reticulata); amygdaloid complex now known to be part of the limbic system. Synonym: nuclei basales. (05 Mar 2000) |
| nuclei cochleares | The nucleus cochlearis dorsalis and nucleus cochlearis ventralis, located on the dorsal and lateral surface of the inferior cerebellar peduncle, in the floor of the lateral recess of the rhomboid fossa. They receive the incoming fibres of the cochlear part of the vestibulocochlear nerve and are the major source of origin of the lateral lemniscus or central auditory pathway. Synonym: cochlear nuclei, nuclei nervi cochlearis. (05 Mar 2000) |
| nuclei corporis mamillaris | A single large-celled lateral nucleus and a larger bipartite medial nucleus together comprising the mamillary body; present in the caudal hypothalamus. Synonym: nuclei corporis mamillaris, nucleus of the mamillary body. (05 Mar 2000) |
| nuclei intralaminares thalami | Collective term denoting several cell groups embedded in the internal medullary lamina of the thalamus: central lateral nucleus, paracentral nucleus, and farthest caudally, the large centromedian nucleus. The first two of these receive afferents from the cerebral cortex, brainstem, reticular formation, cerebellum, and spinal cord, and project more or less diffusely to large regions of the frontal and parietal cortex. See: centromedian nucleus. Synonym: nuclei intralaminares thalami. (05 Mar 2000) |
| nuclei nervi cochlearis | The nucleus cochlearis dorsalis and nucleus cochlearis ventralis, located on the dorsal and lateral surface of the inferior cerebellar peduncle, in the floor of the lateral recess of the rhomboid fossa. They receive the incoming fibres of the cochlear part of the vestibulocochlear nerve and are the major source of origin of the lateral lemniscus or central auditory pathway. Synonym: cochlear nuclei, nuclei nervi cochlearis. (05 Mar 2000) |
| nuclei nervi vestibulocochlearis | The combined cochlear and vestibular nuclei in the brainstem that receive the incoming fibres of the eighth cranial nerve. See: vestibular nucleus. Synonym: nuclei nervi vestibulocochlearis. (05 Mar 2000) |
Synonyms : NRF1 Transcription Factor, Transcription Factor, NRF1
Synonyms : Nuclear Respiratory Factor, Respiratory Factor, Nuclear, Respiratory Factors, Nuclear
Synonyms : Nuclear Transplantation, Somatic Cell Nuclear Transfer Technique, Nuclear Transfer Technique, Transplantation, Nuclear
Synonyms : Nuclear Weapon, Nuclear Weapons Testings, Testing, Nuclear Weapons, Testings, Nuclear Weapons, Warfare, Atomic, Warfare, Nuclear, Weapon, Nuclear, Weapons Testing, Nuclear, Weapons Testings, Nuclear, Weapons, Nuclear
Synonyms : Assay, Nuclease Protection, Assays, Nuclease Protection, Nuclease Protection Assay
| nuclear chemistry |
radiochemistry: the chemistry of radioactive substances
출처: wordnet.princeton.edu/perl/webwn
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| nuclear family |
a family consisting of parents and their children and grandparents of a marital partner
출처: wordnet.princeton.edu/perl/webwn
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| nullipara |
(obstetrics) a woman who has never give birth to a child
출처: wordnet.princeton.edu/perl/webwn
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| numb |
asleep(p): lacking sensation; "my foot is asleep"; "numb with cold" dead(p): (followed by `to') not showing human feeling or sensitivity; unresponsive; "passersby were dead to our plea for help"; "numb to the cries for mercy" make numb or insensitive; "The shock numbed her senses" petrified: so frightened as to be unable to move; stunned or paralyzed with terror; "petrified with fear"; "she was petrified by the eerie sound"; "too numb with fear to move"
출처: wordnet.princeton.edu/perl/webwn
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| nuclear energy |
atomic energy: the energy released by a nuclear reaction
출처: wordnet.princeton.edu/perl/webwn
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| NU | the sum of the number of neutrons and protons in an atomic nucleus |
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| NU | the branch of physics that studies the internal structure of atomic nuclei |
| NU | the protoplasm that constitutes the nucleus of a cell |
| NU | any of several substances found in the nuclei of all living cells |
| NU | a glycoside formed by partial hydrolysis of a nucleic acid |
| NU | a phosphoric ester of a nucleoside |
| NU | a part of the cell containing DNA and RNA and responsible for growth and reproduction |
| NU | any histologically identifiable mass of neural cell bodies in the brain or spinal cord |
| NU | a small group of indispensable persons or things |
| NU | the positively charged dense center of an atom |
| NU | (astronomy) the center of the head of a comet |
| NU | ctenophores lacking tentacles |