neutron
A subatomic particle forming part of the nucleus of an atom and having no charge; it is a combination of an up quark and two down quarks.

neutronium
A material composed entirely of neutrons.
A hypothetical gravitationally bound system of a neutron and an antineutron (the onium of a neutron), not predicted to exist under normal circumstances.

neutrons
plural of neutron

neutrophin
Misspelling of neurotrophin.

neutrotrophin
Misspelling of neurotrophin.

nexeridine
An opioid analgesic that structurally resembles pethidine and tramadol.

nexin
A protein that constitutes a link between microtubules in cilia and flagella.

nexins
plural of nexin

niacin
A water-soluble vitamin, a component of vitamin B complex, found in meat, yeast, and dairy products; it is essential to metabolism.

niaproof
Any of a range of anionic surfactants

nicandrenone
A steroidal lactone found in Nicandra species.

nicandrenones
plural of nicandrenone

niceritrol
A niacin derivative used as a hypolipidemic agent.

nickelate
Any of several anions containing a central nickel atom bonded to oxygen or oxygen-containing groups; any salt containing these anions.

nickelates
plural of nickelate

nickelocene
The nickel metallocene bis(cyclopentadienyl)nickel.

nickelocenes
plural of nickelocene

niclosamide
A teniacide that is especially effective against cestodes that infect humans, also used as a piscicide.

nicocodeine
An opiate derivative, closely related to dihydrocodeine, developed as a cough suppressant and analgesic.

nicodicodeine
An opiate derivative developed as a cough suppressant and analgesic.

nicofuranose
A niacin derivative used as a hypolipidemic agent.

nicotelline
A tricyclic heterocycle composed of three linked pyridine rings, 2,4-dipyridin-3-ylpyridine

nicotene
Alternative form of nicotine

nicothianamine
Misspelling of nicotianamine.

nicotianamine
An enzyme inhibitor N-(N-(3-amino-3-carboxypropyl)-3-amino-3-carboxypropyl)azetidine-2-carboxylic acid or its derivatives

nicotianamines
plural of nicotianamine

nicotin
Dated form of nicotine.

nicotine
An alkaloid (C₁₀H₁₄N₂), commonly occurring in the tobacco plant.
Tobacco or cigarettes.

nicotines
plural of nicotine

nicotinoid
Any of a large group of compounds related to nicotine

nicotinoids
plural of nicotinoid

nicotinoyl
The radical derived from nicotinic acid

nicotinoylation
Reaction with a nicotinoyl radical

nicotinoylations
plural of nicotinoylation

nicotinoyls
plural of nicotinoyl

nicotins
plural of nicotin

nicouline
rotenone

nidogen
entactin

nidogens
plural of nidogen

nierite
A trigonal-ditrigonal pyramidal mineral containing four nitrogen and three silicon.

nigelline
An alkaloid found in nigella seeds

nigellone
A polymer of thymoquinone that occurs in the oil of Nigella sativa

nigerooligosaccharide
An oligomer of nigerose.

niggacide
A supposed substance said to have been developed for eradicating black people.

niggacides
plural of niggacide

nightline
An overnight telephone counselling service, typically for students.
A fishing line set out to catch fish overnight.

nightlines
plural of nightline

nighttide
nighttime

nigranilin
Alternative form of nigraniline.

nigraniline
A complex, nitrogenous, organic base and black dyestuff

nigre
In soapmaking, the lower layer of liquid produced by pitching, which contains most of the impurities.

nigres
plural of nigre

nigrite
An insulating material consisting of the impure residuum obtained in the distillation of paraffin.

nikethamide
A stimulant which mainly affects the respiratory cycle.

nilium
Synonym for neutronium

nilprogression
A function of the products of the elements of a nilpotent group and their inverses

nilprogressions
plural of nilprogression

nilradical
The set of nilpotent elements of an algebraic structure such as an ideal

nilradicals
plural of nilradical

nilsequence
A sequence of zero elements

nilsequences
plural of nilsequence

nimbolide
A triterpene limonoid, obtained from Azadirachta indica, that is used in traditional medicine and has some anticancer properties

ninein
A protein that has a centrosomal function

niobium
A chemical element (symbol Nb) with an atomic number of 41: a light grey, crystalline, ductile transition metal used in superconducting materials.
A single atom of this element.

niobiums
plural of niobium

niobocene
A metallocene containing a niobium atom.

niobocenes
plural of niobocene

niosome
A vesicle composed of a nonionic surfactant and cholesterol

niosomes
plural of niosome

niphatenone
Any of a group of glycerol ethers present in the sponge Niphates digitalis

niphatenones
plural of niphatenone

nipponium
A chemical element, supposed to be the then-undiscovered technetium, but later identified as rhenium.

nirogacestat
An anticancer medication for the treatment of desmoid tumors.

nitazene
A synthetic opioid derived from 2-benzylbenzimidazole.
Any of a group of potent synthetic opioids with a structure related to nitazene, never approved for clinical use but manufactured as illicit drugs or adulterants thereof.

nitazenes
plural of nitazene

nithiocyamine
amoscanate

nitinol
Alternative form of Nitinol.

nitinols
plural of nitinol

nitisol
A nitic soil.

nitisols
plural of nitisol

nitracaine
A stimulant with local anesthetic properties, closely related to dimethocaine, that has been sold as a designer drug.

nitracline
A layer in a body of water in which the nitrate concentration changes rapidly with depth

nitraclines
plural of nitracline

nitragin
a fertilizer consisting of a culture of nitrogen-fixing bacteria obtained from the root nodules of leguminous plants

nitraniline
Any of a series of nitro derivatives of aniline.

nitranilines
plural of nitraniline

nitraquazone
A phosphodiesterase inhibitor.

nitraries
plural of nitrary

nitrary
A place where potassium nitrate or saltpetre is produced.

nitratation
The conversion of nitrite into nitrate, typically be means of the enzyme nitrite oxidoreductase

nitratations
plural of nitratation

nitratocuprate
Any of several anions of general formula Cu(NO₃)ₘⁿ⁻; any salt containing such an anion.

nitratocuprates
plural of nitratocuprate

nitrazine
A pH indicator used in medicine

nitricum
nitric acid

nitrid
Archaic form of nitride.

nitride
A compound of nitrogen where nitrogen has an oxidation state of −3.

nitrided
Subjected to the nitriding process.

nitrides
plural of nitride

nitrids
plural of nitrid

nitridyl
A radical nitrogen ion with a double negative charge; N^(2−•); A nitrogen atom with only two bonds.

nitrilimine
nitrile imide

nitrilimines
plural of nitrilimine

nitriloside
amygdalin; vitamin B17

nitroaldol
Any nitro derivative of an aldol

nitroaldols
plural of nitroaldol

nitroalkane
Any alkane containing a nitro group

nitroalkanes
plural of nitroalkane

nitroalkene
Any nitro derivative of an alkene

nitroalkenes
plural of nitroalkene

nitroamide
Any N-nitro derivative of an amide

nitroamides
plural of nitroamide

nitroaniline
Any nitro derivative of aniline.

nitroanilines
plural of nitroaniline

nitroarene
Any nitro derivative of an arene

nitroarenes
plural of nitroarene

nitrobacteria
plural of nitrobacterium

nitrobacterium
Any of the several genera of bacteria in soil that take part in the nitrogen cycle, oxidizing ammonium and organic nitrogen compounds to the more soluble nitrite and nitrate.

nitrobenzaldehyde
Any of three isomeric nitro derivatives of benzaldehyde

nitrobenzaldehydes
plural of nitrobenzaldehyde

nitrobenzhydrazide
Alternative form of nitrobenzohydrazide.

nitrobenzoate
A benzene group with a nitrogen dioxide substituent, usually as part of a greater molecule such as methyl nitrobenzoate.

nitrobenzoates
plural of nitrobenzoate

nitrobenzohydrazide
An organic compound used as a reagent in analytical chemistry

nitrobenzol
Nitrobenzene.

nitrobenzole
Alternative spelling of nitrobenzol.

nitrobenzoyl
A nitro derivative of a benzoyl radical

nitrobenzoyls
plural of nitrobenzoyl