boiling tube
small cylindrical vessel used to strongly heat substances in the flame of a Bunsen burner; larger than a test tube; designed to be wide enough to allow substances to boil violently
en-US/ˈbɔɪliŋ ˈtjub/
en-GB/ˈbɔɪlɪŋ ˈtjuːb/
small cylindrical vessel used to strongly heat substances in the flame of a Bunsen burner; larger than a test tube; designed to be wide enough to allow substances to boil violently