ETYM AS. flasce, flaxe; akin to Dutch flesch, Old High Germ. flasca, German flasche, Icel. and Swed. flaska, Dan. flaske, Old Fren. flasche, Late Lat. flasca, flasco; of uncertain origin; cf. Latin vasculum, dim. of vas a vessel. Related to Flagon, Flasket.
1. Has a narrow neck.
2. The quantity a flask will hold; SYN. flaskful.

ETYM French fiole, Latin phiala a broad, flat, shallow cup or bowl, Greek. cf. Vial.
(Homonym: file).
A bottle that contains a drug (especially a sealed sterile container for injection by needle); SYN. vial, ampule, ampul, ampoule.

ETYM Old Eng. viole, fiole, French fiole. Related to Phial.
(Homonym: vile, viol).
A small container for a liquid; especially for chemicals or poisins.