A machine for producing paper pulp by boiling wood or other plant material with chemicals which dissolve away extraneous material to leave the fibrous pulp.
Origin
Mid 19th century; earliest use found in Scientific American.
Definition of pulp digester in US English:
pulp digester
noun
A machine for producing paper pulp by boiling wood or other plant material with chemicals which dissolve away extraneous material to leave the fibrous pulp.
Origin
Mid 19th century; earliest use found in Scientific American.