We found 4 dictionaries that define the word powder flasks:

General (4 matching dictionaries)

1. powder flasks: Collins English Dictionary
2. powder flasks: Vocabulary.com
3. powder-flasks: Wordnik
4. powder flasks: TheFreeDictionary.com

(Note: See powder_flask as well.)

Definitions from Wiktionary (powder flask) ▸ noun:  A small flask for carrying gunpowder. ▸ Also see powder_flask ▸ Words similar to powder flasks ▸ Usage examples for powder flasks ▸ Idioms related to powder flasks ▸ Wikipedia articles (New!) ▸ Words that often appear near powder flasks ▸ Rhymes of powder flasks ▸ Invented words related to powder flasks