| NOUN | substance | poison gas | a gas that is poisonous to breath or contact |
|---|
| Meaning | A gas that is poisonous to breath or contact; used in chemical warfare. | |
|---|---|---|
| Narrower | mustard gas, mustard agent, blistering agent, dichloroethyl sulfide, sulfur mustard | A toxic war gas with sulfide based compounds that raises blisters and attacks the eyes and lungs |
| nerve gas, nerve agent | A toxic gas that is inhaled or absorbed through the skin and has harmful effects on the nervous and respiratory system | |
| Broader | chemical weapon | chemical substances that can be delivered using munitions and dispersal devices to cause death or severe harm to people and animals and plants |
| gas | A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | |
| Spanish | gas tóxico | |
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