Meaning of FLASK in English

FLASK

n.1 a narrow-necked bulbous bottle for wine etc. or as used in chemistry.

2 hip-flask (see HIP(1)).

3 vacuum flask.

4 hist. powder-flask.

Etymology: F flasque & (prob.) It. fiasco f. med.L flasca, flasco: cf. FLAGON

Oxford English vocab.      Оксфордский английский словарь.