also: ビーカ
noun
beaker
A cylindrical glass container used in laboratories for mixing, heating, and measuring liquids.
実験でビーカーに水を入れて加熱した。
In the experiment, I put water in a beaker and heated it.
Standard katakana spelling for the laboratory beaker.
Variant spelling without the long vowel marker; less common but recognized.
フラスコ (flask) has a narrower neck and is used for swirling or storing liquids, while ビーカー has a wide mouth and is used for general mixing and heating.
Borrowed from English 'beaker'.