in addition byproduct; 1857, from by + item.
Any product which hails from but less in price than another item from exact same source.
something made during the manufacture of something else
- a secondary and quite often unanticipated consequence
- another or additional item; anything produced, like in the course of a make, aside from the key product.
(n.) A secondary or extra product; one thing produced, like in the course of a manufacture, aside from the major item.
Some attention is also being given to the manufacture of alcohol for power purposes in Hawaii, Porto Rico and the Philippines; and in Cuba, from the molasses produced as a by-product in the sugar refineries.