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flask

flask /ˈflæsk/ Brit /ˈflɑːsk/ noun
plural flasks
flask
/ˈflæsk/ Brit /ˈflɑːsk/
noun
plural flasks
Britannica Dictionary definition of FLASK
[count]
: a container that is shaped like a flattened bottle and that is used to carry alcohol
called also hip flask
: a glass bottle used in scientific laboratories
British : thermos