Part extruded or cast from an inoculation alloy which is fixed to the downsprue system or in the downsprue vessel (see downsprue) in suth a way that it continuously dissolves during the entire casting process without any residues.
Additional references:
Mold inoculation
Inoculation wire
Inoculation
Inoculant
Long-term inoculant
Inoculant inclusions