noun. a small bottle that contains a drug (especially a sealed sterile container for injection by needle).
- fiole (Old French (842-ca. 1400))
- phiala (Latin)
Example sentences of the word phial
1. Noun, singular or mass
Swirl around three times in a circle about a foot wide in diameter; if a phial is used, circle as wide as possible five times to ensure a good sample.