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A long tube with a bulbous flared top.
Also known as: Thistle tube, Addition funnel
A thistle funnel is drawn as a long narrow tube with a bulbous flared top, used to add liquid to a closed apparatus without opening it.
Adds liquid to a sealed apparatus through a long tube without opening it.
Contexts: Laboratory
Must reach below the liquid surface to work, since gas would otherwise escape up the tube instead of the liquid running down it.
Contexts: Laboratory
A long narrow vertical tube widening at the top into a small bulb with a flared rim.