A lab vial is a small container used to store and transport liquids, such as chemicals or samples. It is typically made of glass or plastic and is often sealed with a stopper or cap. The two crossword solutions for the term 'lab vial' are 'FLASK' (5 letters) and 'AMPULE' (6 letters). A FLASK is a type of lab vial that is usually made of glass and has a wide mouth and a narrow neck. An AMPULE is a type of lab vial that is usually made of glass and has a narrow neck and a sealed end.