| Main Entry: | poison gas |
| Part of Speech: | noun |
| Definition: | poisonous gas |
Synonyms: |
marsh gas, mustard gas, swamp gas, war gas |
| Main Entry: | nerve gas |
| Part of Speech: | noun |
| Definition: | poisonous gas |
Synonyms: |
asphyxiant, mustard gas, poison gas, tear gas, war gas |
| Main Entry: | tear gas |
| Part of Speech: | noun |
| Definition: | poisonous gas |
Synonyms: |
asphyxiant, lachrymatory gas, poison gas |