1) Laboratory glassware 
A glass container, essentially spherical, but with a flattened bottom
A globular long-necked bottle of thin glass used for holding water or other liquid in laboratory work. ... (05 Mar 2000) ... 
A Florence flask is a globular, long-necked flask of thin glass, of the kind that Florence oil (that is olive-oil) and Tuscan wine were traditionally contained in.A Florence flask is a round bottle with a flat bottom and a long neck used in laboratories.
a round bottle having a flat bottom and long neck, for use in laboratories.