| n. | 1. | a mask with a filter which protects the face and lungs against poisonous gases. It is used in warfare, and also by police to allow them to effectively use tear gas or other disabling gas to disperse a crowd or force fugitives to leave a building. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  gasmask - a protective mask with a filter; protects the face and lungs against poisonous gasesmask - a protective covering worn over the face |
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