from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A round flatbottom flask with a long neck, used in laboratory work.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A glass flask with a round body used in a laboratory for holding chemical liquids and solutions. Normally with a round bottom for uniform heating, but may have a flattened base to stand on a flat surface without support.
from the GNU version of the Collaborative International Dictionary of English
- n. A glass flask, round or pear-shaped, with round or flat bottom, and usually very thin to allow of heating solutions.
- n. See under Flask.
from The Century Dictionary and Cyclopedia
- n. etc. See the nouns.
After Florence , from the use of similar flasks for certain Italian wines.(American Heritage® Dictionary of the English Language, Fourth Edition)
Florence + flask. (Wiktionary)