byproduct

byproduct — noun

1. something extra that is made when a main product is manufactured, processed, or

1.nounC1
Definition

something extra that is made when a main product is manufactured, processed, or grown

Example

The factory sells the fruit peel as a byproduct for animal feed.

byproduct used after production

Steam from the paper mill became a byproduct used to heat nearby homes.

Common collocations
  • industrial byproduct
  • chemical byproduct
  • sell a byproduct
  • use a byproduct
Synonyms
  • co-product

    technical term for something produced alongside another product

  • residue

    only when the extra material is leftover matter rather than a broadly useful extra product

Grammar Patterns

a byproduct of + process

use a byproduct for + purpose

Usage Note

This sense usually names a physical substance or item made alongside the main product, especially in industry, farming, or science. Distinguish it from sense 2, which is about an outcome rather than a material thing.

2. an additional result that comes from an activity or change, often without being

2.nounC1
Definition

an additional result that comes from an activity or change, often without being planned

Example

Better teamwork was a byproduct of the long weeks spent rehearsing together.

a byproduct of + activity

One welcome byproduct of the bike program was cleaner air downtown.

Common collocations
  • unexpected byproduct
  • welcome byproduct
  • positive byproduct
  • a byproduct of change
Synonyms
  • side effect

    often suggests an unintended result, especially a harmful one

  • spin-off

    often suggests a useful new development that grows out of something else

Grammar Patterns

a byproduct of + activity

a byproduct of + change

Usage Note

Use this sense for an effect, benefit, or problem that appears because of something else. Distinguish it from sense 1, which refers to a tangible material or manufactured item.

Etymology

English

The word combines by with product to name something that appears alongside a main result.

First known use

1849

1849, in the meaning defined at sense 1