Byproduct (noun)

1. A product that is produced as a result of a main production process, but is not the main product.
2. A secondary or indirect result of an action or process.

Origin:

Derived from the old english word "by" meaning "beside" or "nearby" and "product" meaning "something produced".

Examples:

1. The byproduct of the distillation process is a valuable chemical that is used in the production of perfumes.
2. The byproduct of the fermentation process is alcohol.
3. The company saw the byproduct as a valuable resource and decided to market it.
4. The byproduct of the reaction was a gas that was harmful to breathe.
5. The byproduct of the research was the discovery of a new compound that had potential medical applications.