Glass. Comes via German Mensur from Latin mensura (measure).
В руках у него была мензурка с водой.
He had a beaker of water in his hands.
(А. Д. Сахаров, Воспоминания)
мензурка
мензурка f [menzurka]
Phrasebook • Money slang • Political insults • Пиздец! the book • Transliteration of Cyrillics • Telegram channel