1. In mathematics, the quantity obtained by multiplying two or more quantities together. Also, more widely, applied to other mathematical entities (as events, matrices, permutations, sets, tensors, vectors, etc.) obtained by certain defined processes of combination of two or more entities, the processes not necessarily being commutative and the entities combined not necessarily being of the same kind.
2. A thing produced by nature or a natural process; also in a collective sense; such as, produce, fruit.
3. That which is produced by any action, operation, or work; a production; the result. Now freq. that which is produced commercially for sale.
4. That which results from the operation of a cause; a consequence, effect.
5. In chemistry, a compound not previously existing in a body, but formed during its decomposition.

A serial, created by the Auto-ID Center, that will complement barcodes.

The EPC has digits to identify the manufacturer, product category and the individual item.

The total value of goods and services produced by labor and property located in the United States: As long as the gross domestic product and the labor and property are located in the United States, the supplier (that is, the workers and, for property, the owners) may be either U.S. residents or residents of foreign countries.

The total value of goods and services produced by a nation's economy before the deduction or depreciation charges and other allowances for capital consumption: The gross national product includes the total purchases of goods and services by private consumers and government, gross private domestic capital investment, and net monetary receipts from foreign trading.

The barcode standard used in North America.

It is administered by the Uniform Code Council.