round-bottom flask

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Noun1.round-bottom flask - a spherical flask with a narrow neck
flask - bottle that has a narrow neck
References in periodicals archive ?
The DrySyn 3-Position Clamp from Asynt has been designed to enable chemists performing parallel synthesis to secure up to three round-bottomed flasks or condensers to a standard boss head.
The system has been designed to simultaneously heat and stir up to 6 x 5 mL, 10 mL, 25 mL, 50 mL, 170 mL or 250 mL round-bottomed flasks under inert gas and reflux.
Heat-On heating blocks are suited for round-bottomed flasks from 10 mL to 5 L.