rubber policeman
Noun
Meaning
rubber policeman (plural rubber policemen)
(chemistry) a flexible rubber scraper attached to a glass rod, used in chemistry laboratories for amalgamating and transferring solid residues in gravimetric analysis.
Noun
rubber policeman (plural rubber policemen)
(chemistry) a flexible rubber scraper attached to a glass rod, used in chemistry laboratories for amalgamating and transferring solid residues in gravimetric analysis.