We found 3 dictionaries that define the word protective mask:

General (2 matching dictionaries)

1. Protective mask: Wikipedia, the Free Encyclopedia
2. protective mask: TheFreeDictionary.com

Tech (1 matching dictionary)

3. DOD Dictionary of Military Terms (No longer online)

Phrases: M40 field protective mask, more... ▸ Words similar to protective mask ▸ Usage examples for protective mask ▸ Idioms related to protective mask ▸ Wikipedia articles (New!) ▸ Words that often appear near protective mask ▸ Rhymes of protective mask ▸ Invented words related to protective mask