English Dictionary

Bologna bottle

名詞

A glass bottle that has had its outside cooled slowly and its inside cooled rapidly. It has great external strength but is liable to shatter from a mere scratch on the inside.

日本語の意味

外側をゆっくり、内側を急速に冷却することで形成されたガラス瓶。外側は非常に強固であるが、内側にわずかな傷がつくだけで割れやすいという特徴を持つ。

The museum curator carefully explained that the Bologna bottle, with its extremely tough outer skin and fragile inner core, could resist blunt impacts yet shatter from a mere scratch inside.

館長は、外側をゆっくり冷却し内側を急速に冷却したため外側は非常に頑丈で内側はもろいというガラス瓶が、鈍い衝撃には耐えられる一方で内側のわずかな傷で粉々になることを丁寧に説明した。

意味（1）

A glass bottle that has had its outside cooled slowly and its inside cooled rapidly. It has great external strength but is liable to shatter from a mere scratch on the inside.

Bologna bottles （ plural ）