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A flat perforated plate above a stem.
Also known as: Vacuum filter funnel, Suction funnel
A Buchner funnel is drawn as a cylinder with a flat perforated plate across it above a stem, used with suction to filter faster than gravity allows.
Filters under suction through a flat perforated plate supporting filter paper.
Contexts: Laboratory
Appears in diagrams with a side-arm flask and a vacuum line, since it does not work without them.
Contexts: Laboratory
A cylinder with a horizontal perforated plate drawn across its middle and a narrow stem below it.