1. a small bottle, typically cylindrical and made of glass, used especially for holding liquid medicines

Examples

• The nurse drew blood into a small glass vial.
• Each vial contained exactly 10 milliliters of the vaccine.
• The scientist carefully labeled each vial with the date and contents.
• She kept her perfume samples in tiny crystal vials.
• The medicine came in a dark vial to protect it from light.
• He accidentally dropped the vial, spilling the precious serum.