You know what it looks like… but what is it called?
TAKE THE QUIZ“Vigreux”
We have one entry that includes the term Vigreux.
Vigreux column
noun: a long unpacked glass tube for use in laboratory fractional distillation that is characterized by many deep pointed indentations in its sidewall and has an opening at the top for a thermometer and a side arm near the top for attachment to a condenser
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Merriam-Webster unabridged
