nitrous air

noun 0.909

nitrous oxide

noun 0.876

nitro

noun 0.781

nitroso

noun 0.748

nitrous acid

noun 0.736

nitric

noun 0.709

nitrox

noun 0.704

laughing gas

noun 0.684

nitrogen

noun 0.680

nitric oxide

noun 0.671

nitrogen tetroxide

noun 0.664

nitrite

noun 0.643

nitrate

noun 0.643

dinitrogen tetroxide

noun 0.641

nitrogen oxide

noun 0.633

nitrogen monoxide

noun 0.626

nitromethane

noun 0.626

nitric acid

noun 0.622

liquid nitrogen

noun 0.622

nitre

noun 0.618

dinitrogen

noun 0.608

nitrosonium

noun 0.607

nitrogen dioxide

noun 0.602

nitrosamine

noun 0.598

nitride

noun 0.598

dinitrogen pentoxide

noun 0.596

niter

noun 0.595

nitroaromatic

noun 0.594

nitrocellulose

noun 0.594

nitrone

noun 0.591

nitropropane

noun 0.590

nitrosothiol

noun 0.585

nitration

noun 0.582

nitrobenzene

noun 0.578

nitroguanidine

noun 0.574

potassium nitrite

noun 0.573

sodium nitrite

noun 0.570

nitrile

noun 0.568

nitrogen narcosis

noun 0.568

nitroglycerine

noun 0.567

nox

noun 0.566

nitrene

noun 0.562

gas and air

noun 0.557

liquid air

noun 0.556

amyl nitrate

noun 0.555

nitrofuran

noun 0.555

nitrate of soda

noun 0.552

sodium nitrate

noun 0.546

nitrobenzyl

noun 0.546

potassium nitrate

noun 0.545

nitrosylation

noun 0.544

nitriding

noun 0.544

nasal

noun 0.543

oxygen gas

noun 0.541

nitrosoguanidine

noun 0.541

amyl nitrite

noun 0.540

oxygen

noun 0.538

gas

noun 0.538

nitrogen trichloride

noun 0.537

nitroaniline

noun 0.536

peroxynitrite

noun 0.536

nitrosodimethylamine

noun 0.533

nit

noun 0.533

nitrobenzoic acid

noun 0.532

trinitrate

noun 0.531

nisin

noun 0.528

natural gas

noun 0.528

nozzle

noun 0.525

nitroquinoline

noun 0.525

nouse

noun 0.525

nitroanilide

noun 0.525

oxynitride

noun 0.525

subnitrate

noun 0.524

nitroreductase

noun 0.523

nitrogen mustard

noun 0.523

xenon

noun 0.522

nitramine

noun 0.522

hydrazine

noun 0.520

inert gas

noun 0.517

gas jet

noun 0.514

nis

noun 0.514

nicotine

noun 0.512

nostril

noun 0.512

inhalant

noun 0.511

snorting

noun 0.511

nitroblue tetrazolium

noun 0.511

narcotic

noun 0.510

no-no

noun 0.508

naloxone

noun 0.508

noble gas

noun 0.506

compressed air

noun 0.505

odium

noun 0.501

liquid ammonia

noun 0.501