sulfur mustard

noun 0.853

nitrogen mustard

noun 0.734

mustard

noun 0.721

tear gas

noun 0.684

mustard oil

noun 0.670

chemical weapon

noun 0.653

white mustard

noun 0.645

gas mask

noun 0.627

phosgene

noun 0.605

germ warfare

noun 0.588

marsh gas

noun 0.571

gassing

noun 0.569

town gas

noun 0.568

white arsenic

noun 0.568

smoke grenade

noun 0.567

natural gas

noun 0.565

gas

noun 0.564

methyl mercaptan

noun 0.560

gas main

noun 0.551

chemical agent

noun 0.548

weapon of mass destruction

noun 0.544

hydrogen sulfide

noun 0.543

dimethyl sulfide

noun 0.538

sulphur

noun 0.538

hand grenade

noun 0.538

coal gas

noun 0.537

gasoline

noun 0.536

sulfur hexafluoride

noun 0.536

sulfur

noun 0.534

sulfur dioxide

noun 0.531

biological warfare

noun 0.525

biological weapon

noun 0.525

fumigant

noun 0.524

mostarda

noun 0.522

picric acid

noun 0.521

arsenic

noun 0.521

grenade

noun 0.520

poison

noun 0.520

arsenious acid

noun 0.520

busulfan

noun 0.519

gasman

noun 0.519

oxygen gas

noun 0.519

white phosphorus

noun 0.519

chlorine

noun 0.517

gas chamber

noun 0.517

greenhouse gas

noun 0.516

sarin

noun 0.515

carmustine

noun 0.515

laughing gas

noun 0.514

methane

noun 0.514

asbestos

noun 0.514

isothiocyanate

noun 0.512

smoke bomb

noun 0.512

horseradish

noun 0.511

stun grenade

noun 0.511

gas truck

noun 0.510

napalm

noun 0.510

carbonic acid gas

noun 0.509

cyanide

noun 0.508

yellow phosphorus

noun 0.507

pepper spray

noun 0.506

oil gas

noun 0.505

hydrocyanic acid

noun 0.505

gunpowder

noun 0.505

sulfuric acid

noun 0.504

parathion

noun 0.503

toxin

noun 0.502

mesothelioma

noun 0.502

allyl isothiocyanate

noun 0.501

chlorine trifluoride

noun 0.500