| neurolysin | (noun) any toxin that affects neural tissues | Synonyms: neurotoxin |
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| neuroma | (noun) any tumor derived from cells of the nervous system | - |
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| neuromarketing | (noun) marketing based on studies of consumers' sensorimotor, cognitive, and affective responses | Synonyms: neuro-marketing |
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| neuron | (noun) a cell that is specialized to conduct nerve impulses | Synonyms: nerve cell |
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| neuropathy | (noun) any pathology of the peripheral nerves | - |
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| neurophysiology | (noun) the branch of neuroscience that studies the physiology of the nervous system | - |
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| neuropil | (noun) the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded | Synonyms: neuropile |
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| neuropile | (noun) the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded | Synonyms: neuropil |
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| neuroplasty | (noun) plastic surgery of the nerves | - |
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| neuropsychiatry | (noun) the branch of medicine dealing with mental disorders attributable to diseases of the nervous system | - |
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| neuropsychology | (noun) the branch of psychology that is concerned with the physiological bases of psychological processes | Synonyms: physiological psychology, psychophysiology |
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| neuropteran | (noun) insect having biting mouthparts and four large membranous wings with netlike veins | Synonyms: neuropteron, neuropterous insect |
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| neuropteron | (noun) insect having biting mouthparts and four large membranous wings with netlike veins | Synonyms: neuropteran, neuropterous insect |
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| neurosarcoma | (noun) a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue | Synonyms: malignant neuroma |
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| neuroscience | (noun) the scientific study of the nervous system | - |
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| neuroscientist | (noun) a neurobiologist who specializes in the study of the brain | - |
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| neurosis | (noun) a mental or personality disturbance not attributable to any known neurological or organic dysfunction | Synonyms: neuroticism, psychoneurosis |
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| neurosurgeon | (noun) someone who does surgery on the nervous system (especially the brain) | Synonyms: brain surgeon |
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| neurosurgery | (noun) any surgery that involves the nervous system (brain or spinal cord or peripheral nerves) | - |
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| neurosyphilis | (noun) syphilis of the central nervous system | - |
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| neurotic | (noun) a person suffering from neurosis | Synonyms: mental case, psychoneurotic |
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| neuroticism | (noun) a mental or personality disturbance not attributable to any known neurological or organic dysfunction | Synonyms: neurosis, psychoneurosis |
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| neurotoxin | (noun) any toxin that affects neural tissues | Synonyms: neurolysin |
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| neurotransmitter | (noun) a neurochemical that transmits nerve impulses across a synapse | - |
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| neurotropism | (noun) an affinity for neural tissues | - |
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| neuter | (noun) a gender that refers chiefly (but not exclusively) to inanimate objects (neither masculine nor feminine) | - |
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| neutering | (noun) the sterilization of an animal | Synonyms: altering, fixing |
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| neutral | (noun) one who does not side with any party in a war or dispute | - |
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| neutralisation | (noun) action intended to nullify the effects of some previous action | Synonyms: counteraction, neutralization |
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| (noun) action intended to keep a country politically neutral or exclude it from a possible war | Synonyms: neutralization |
| (noun) (euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or military operation) | Synonyms: neutralization |
| (noun) a chemical reaction in which an acid and a base interact with the formation of a salt; with strong acids and bases the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water | Synonyms: neutralisation reaction, neutralization, neutralization reaction |
| neutralism | (noun) a policy of neutrality or nonalignment in international affairs | - |
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| neutralist | (noun) an advocate of neutrality in international affairs | - |
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| neutrality | (noun) nonparticipation in a dispute or war | - |
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| (noun) pH value of 7 | - |
| (noun) tolerance attributable to a lack of involvement | Synonyms: disinterest |
| neutralization | (noun) action intended to nullify the effects of some previous action | Synonyms: counteraction, neutralisation |
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| (noun) action intended to keep a country politically neutral or exclude it from a possible war | Synonyms: neutralisation |
| (noun) (euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or military operation) | Synonyms: neutralisation |
| (noun) a chemical reaction in which an acid and a base interact with the formation of a salt; with strong acids and bases the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water | Synonyms: neutralisation, neutralisation reaction, neutralization reaction |
| neutrino | (noun) an elementary, electrically neutral particle with a very small mass | - |
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| neutron | (noun) an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus | - |
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| neutropenia | (noun) leukopenia in which the decrease is primarily in number of neutrophils (the chief phagocytic leukocyte) | - |
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| neutrophil | (noun) the chief phagocytic leukocyte; stains with either basic or acid dyes | Synonyms: neutrophile |
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| neutrophile | (noun) the chief phagocytic leukocyte; stains with either basic or acid dyes | Synonyms: neutrophil |
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| neve | (noun) the upper part of a glacier (beyond the limit of perpetual snow) where the snow turns to ice | - |
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| nevirapine | (noun) a non-nucleoside reverse transcriptase inhibitor (trade name Viramune) used to treat AIDS and HIV | Synonyms: Viramune |
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| nevus | (noun) a blemish on the skin that is formed before birth | Synonyms: birthmark |
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| newbie | (noun) any new participant in some activity | Synonyms: entrant, fledgeling, fledgling, freshman, neophyte, newcomer, starter |
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| newborn | (noun) a baby from birth to four weeks | Synonyms: neonate |
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| newcomer | (noun) any new participant in some activity | Synonyms: entrant, fledgeling, fledgling, freshman, neophyte, newbie, starter |
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| (noun) a recent arrival | - |
| newel | (noun) the central pillar of a circular staircase | - |
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| (noun) the post at the top or bottom of a flight of stairs; it supports the handrail | Synonyms: newel post |
| newlywed | (noun) someone recently married | Synonyms: honeymooner |
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| newmarket | (noun) a long close-fitting coat worn for riding in the 19th century | - |
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| newness | (noun) the quality of being new; the opposite of oldness | - |
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| news | (noun) the quality of being sufficiently interesting to be reported in news bulletins | Synonyms: newsworthiness |
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| (noun) information about recent and important events | Synonyms: intelligence, tidings, word |
| (noun) information reported in a newspaper or news magazine | - |
| (noun) a program devoted to current events, often using interviews and commentary | Synonyms: news program, news show |
| (noun) informal information of any kind that is not previously known to someone | - |
| newsagent | (noun) someone who sells newspapers | Synonyms: newsdealer, newsstand operator, newsvendor |
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| newsboy | (noun) a boy who delivers newspapers | Synonyms: carrier |
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| newsbreak | (noun) a short news announcement concerning some on-going news story | Synonyms: flash, news bulletin, newsflash |
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| newscast | (noun) a broadcast of news or commentary on the news | - |
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| newscaster | (noun) someone who broadcasts the news | - |
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| newsdealer | (noun) someone who sells newspapers | Synonyms: newsagent, newsstand operator, newsvendor |
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| newsflash | (noun) a short news announcement concerning some on-going news story | Synonyms: flash, news bulletin, newsbreak |
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| newsgroup | (noun) an area on a computer network, especially on the internet, devoted to the discussion of a specified topic | - |
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| newsletter | (noun) report or open letter giving informal or confidential news of interest to a special group | Synonyms: newssheet |
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| newsman | (noun) a male person who investigates and reports or edits news stories | - |
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| newsmonger | (noun) a person given to gossiping and divulging personal information about others | Synonyms: gossip, gossiper, gossipmonger, rumormonger, rumourmonger |
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| newspaper | (noun) the physical object that is the product of a newspaper publisher | Synonyms: paper |
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| (noun) a daily or weekly publication on folded sheets; contains news and articles and advertisements | Synonyms: paper |
| (noun) a business firm that publishes newspapers | Synonyms: newspaper publisher, paper |
| (noun) cheap paper made from wood pulp and used for printing newspapers | Synonyms: newsprint |
| newspapering | (noun) journalism practiced for the newspapers | - |
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| newspaperman | (noun) a male journalist employed to provide news stories for newspapers or broadcast media | Synonyms: pressman |
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| newspaperwoman | (noun) a female journalist employed to provide news stories for newspapers or broadcast media | - |
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| newspeak | (noun) deliberately ambiguous and contradictory language used to mislead and manipulate the public | - |
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| newsperson | (noun) a person who investigates and reports or edits news stories | Synonyms: reporter |
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| newsprint | (noun) cheap paper made from wood pulp and used for printing newspapers | Synonyms: newspaper |
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| newsreader | (noun) someone who reads out broadcast news bulletin | Synonyms: news reader |
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| newsreel | (noun) a short film and commentary about current events | - |
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| newsroom | (noun) a reading room (in a library or club) where newspapers and other periodicals can be read | - |
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| (noun) an office in which news is processed by a newspaper or news agency or television or radio station | - |
| (noun) the staff of a newspaper or the news department of a periodical | - |
| newssheet | (noun) report or open letter giving informal or confidential news of interest to a special group | Synonyms: newsletter |
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| newsstand | (noun) a stall where newspapers and other periodicals are sold | - |
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| newsvendor | (noun) someone who sells newspapers | Synonyms: newsagent, newsdealer, newsstand operator |
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| newswoman | (noun) a female newsperson | - |
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| newsworthiness | (noun) the quality of being sufficiently interesting to be reported in news bulletins | Synonyms: news |
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| newswriter | (noun) a journalist employed to provide news stories for newspapers or broadcast media | Synonyms: correspondent |
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| newt | (noun) small usually bright-colored semiaquatic salamanders of North America and Europe and northern Asia | Synonyms: triton |
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| newton | (noun) a unit of force equal to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram; equal to 100,000 dynes | Synonyms: N |
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| nexus | (noun) a connected series or group | - |
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| (noun) the means of connection between things linked in series | Synonyms: link |
| ng | (noun) one billionth (1/1,000,000,000) gram | Synonyms: nanogram |
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| ngultrum | (noun) the basic unit of money in Bhutan | - |
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| ngwee | (noun) 100 ngwee equal 1 kwacha in Zambia | - |
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| niacin | (noun) a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract | Synonyms: nicotinic acid |
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| nib | (noun) horny projecting mouth of a bird | Synonyms: beak, bill, neb, pecker |
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| (noun) the writing point of a pen | Synonyms: pen nib |
| nibble | (noun) gentle biting | - |
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| (noun) a small byte | Synonyms: nybble |
| nibbler | (noun) a biter who takes dainty repeated bites | - |
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| niblick | (noun) an iron with considerable loft | Synonyms: nine iron |
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| nicad | (noun) a rechargeable battery with a nickel cathode and a cadmium anode; often used in emergency systems because of its low discharge rate when not in use | Synonyms: nickel-cadmium accumulator |
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| niceness | (noun) the quality of nice | - |
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| (noun) the quality of being difficult to detect or analyze | Synonyms: subtlety |
| (noun) a courteous manner that respects accepted social usage | Synonyms: politeness |
| nicety | (noun) conformity with some esthetic standard of correctness or propriety | Synonyms: justness, rightness |
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| (noun) a subtle difference in meaning or opinion or attitude | Synonyms: nuance, refinement, shade, subtlety |
| niche | (noun) an enclosure that is set back or indented | Synonyms: recess |
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| (noun) a small concavity | Synonyms: corner, recess, recession |
| (noun) a position particularly well suited to the person who or organization which occupies it | - |
| (noun) (ecology) the status of an organism within its environment and community (affecting its survival as a species) | Synonyms: ecological niche |
| nick | (noun) a small cut | Synonyms: notch, snick |
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| (noun) (British slang) a prison | - |
| (noun) an impression in a surface (as made by a blow) | Synonyms: dent, ding, gouge |
| nickel | (noun) a United States coin worth one twentieth of a dollar | - |
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| (noun) five dollars worth of a drug | Synonyms: nickel note |
| (noun) a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite | Synonyms: atomic number 28, Ni |
| nickelodeon | (noun) a cabinet containing an automatic record player; records are played by inserting a coin | Synonyms: jukebox |
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| nicker | (noun) the characteristic sounds made by a horse | Synonyms: neigh, whicker, whinny |
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| nicknack | (noun) miscellaneous curios | Synonyms: bric-a-brac, knickknack, knickknackery, whatnot |
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| nickname | (noun) a familiar name for a person (often a shortened version of a person's given name) | Synonyms: byname, cognomen, moniker, sobriquet, soubriquet |
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| (noun) a descriptive name for a place or thing | - |
| nicotine | (noun) an alkaloid poison that occurs in tobacco; used in medicine and as an insecticide | - |
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| nictation | (noun) a reflex that closes and opens the eyes rapidly | Synonyms: blink, blinking, eye blink, nictitation, wink, winking |
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| nictitation | (noun) a reflex that closes and opens the eyes rapidly | Synonyms: blink, blinking, eye blink, nictation, wink, winking |
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