Glossary · Nouns · N
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TermTypeDefinitionClassificationsUpdated
Nektonnounthe aggregate of actively swimming animals in a body of water ranging from microscopic organisms to whalesverified
Nelfinavirnouna protease inhibitor (trade name Viracept) used in treating HIV usually in combination with other drugsverified
Nelsonnounany of several wrestling holds in which an arm is passed under the opponent's arm from behind and the hand exerts pressure on the back of the neckverified
Nemerteannounsoft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contractverified
Nemertinenounsoft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contractverified
Neo-Darwinismnouna modern Darwinian theory that explains new species in terms of genetic mutationsverified
Neoclassicismnounrevival of a classical style (in art or literature or architecture or music) but from a new perspective or with a new motivationverified
Neocolonialismnouncontrol by a powerful country of its former colonies (or other less developed countries) by economic pressuresverified
Neoconservatismnounan approach to politics or theology that represents a return to a traditional point of view (in contrast to more liberal or radical schools of thought of the 1960s)verified
Neomycinnounan antibiotic obtained from an actinomycete and used (as a sulphate under the trade name Neobiotic) as an intestinal antiseptic in surgeryverified
Neon Induction LampnounMWEa lamp consisting of a small gas-discharge tube containing neon at low pressureverified
Neon LampnounMWEa lamp consisting of a small gas-discharge tube containing neon at low pressureverified
Neon TubenounMWEa lamp consisting of a small gas-discharge tube containing neon at low pressureverified
Neonatal HyperbilirubinemianounMWEa common disorder that is usually due to immaturity of the liververified
Neonatal Intensive Care UnitnounMWEan intensive care unit designed with special equipment to care for premature or seriously ill newbornverified
Neotenynounan evolutionary trend to be born earlier so that development is cut off at an earlier stage and juvenile characteristics are retained in adults of the speciesverified
Neotonynounthe state resulting when juvenile characteristics are retained by the adults of a speciesverified
Nephelinenouna whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline formverified
Nephelitenouna whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline formverified
Nephoscopenouna measuring instrument that uses a grid for measuring the altitude, direction, and velocity of movement of cloudsverified
Nephritenounan amphibole mineral consisting of calcium magnesium silicate in monoclinic crystalline formverified
Nephroblastomanounmalignant renal tumor of young children characterized by hypertension and blood in the urine and the presence of a palpable massverified
Nephrocalcinosisnounrenal lithiasis in which calcium deposits form in the renal parenchyma and result in reduced kidney function and blood in the urineverified
Nephrogenic Diabetes InsipidusnounMWEdiabetes insipidus caused by a failure of the kidney to respond to normal levels of vasopressinverified
Nephrologynounthe branch of medicine concerned with the kidney - its development and anatomy and physiology and disordersverified
Nephrosisnouna syndrome characterized by edema and large amounts of protein in the urine and usually increased blood cholesterolverified
Nephrotic SyndromenounMWEa syndrome characterized by edema and large amounts of protein in the urine and usually increased blood cholesterolverified
Nepotismnounfavoritism shown to relatives or close friends by those in power (as by giving them jobs)verified
Nerdnounan intelligent and focused expert or enthusiast in a particular technical field or professionverified
Neritanouna neritid gastropod having a short smooth or spirally ridged shell with thick usually toothed outer lip and toothed operculumverified
Neroli OilnounMWEan odoriferous yellow oil found in orange flowers and used in perfumery and as a flavoringverified
Nerve AgentnounMWEa toxic gas that is inhaled or absorbed through the skin and has harmful effects on the nervous and respiratory systemverified
Nerve CompressionnounMWEharmful pressure on a nerve (especially in nerves that pass over rigid prominences)verified
Nerve EntrapmentnounMWErepeated and long-term nerve compression (usually in nerves near joints that are subject to inflammation or swelling)verified
Nerve GasnounMWEa toxic gas that is inhaled or absorbed through the skin and has harmful effects on the nervous and respiratory systemverified
Nerve Growth FactornounMWEa protein that is involved in the growth of peripheral nerve cellsverified