Any product that is derived from but less in value than another product from the same source.

also byproduct; 1857, from by + product.

One of two goods that are produced jointly using the same resource--that is, the production of one good automatically triggers the production of the other. Also termed joint products or complements-in [..]

A secondary metal or mineral product recovered in the milling process such as copper and silver.

Definition noun

 Product of considerably less value than the meat of the carcase, eg hide and offal.

(n) a secondary and sometimes unexpected consequence(n) a product made during the manufacture of something else

Material, other than the principal product, generated as a consequence of an industrial process or as a breakdown product in a living system.

A secondary metal or mineral product recovered in the milling process.

Is a secondary or incidental product deriving from a manufacturing process or a chemical reaction and is not the primary product or service being produced. A by-product can be useful and marketable, o [..]

Material, other than the principal product, generated as a consequence of an industrial process or as a breakdown product in a living system.

Material, other than the principal product, generated as a consequence of an industrial process.

Material, other than the principal product, generated as a consequence of an industrial process or as a breakdown product in a living system.

Material, other than the principal product, generated as a consequence of an industrial process or as a breakdown product in a living system.

"By-product" means any mineral or minerals, exclusive of helium or of oil, hydrocarbon gas or other hydrocarbon substances, that are found in solution or in association with geothermal resou [..]