This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A mass of metal, such as a bar or block, that is cast in a standard shape for convenient storage or shipment.

n. A casting mold for metal.

n. A solid block of more or less pure metal, often but not necessarily bricklike in shape and trapezoidal in cross-section, the result of pouring out and cooling molten metal, often immediately after smelting from raw ore or alloying from constituents.

n. That in which metal is cast; a mold.

n. A bar or wedge of steel, gold, or other malleable metal, cast in a mold; a mass of unwrought cast metal.

n. A mold into which to pour metals; an ingot-mold.

n. A mass of metal cast in a mold.

n. metal that is cast in the shape of a block for convenient handling

"Silicon wafers are manufactured by cooling molten silicon in a crucible in a controlled manner to form an ingot, which is then cut into smaller blocks and sliced into wafers."

ingoting    ingots   

block   

bullion    pig   

mold    lingot    pig    sow    bloom   

casting    bullion    circlet    smelter    rivet    coinage    filings    lode    tongs    ore