Dictionary.com
Thesaurus.com

biodegrade

American  
[bahy-oh-di-greyd] / ˌbaɪ oʊ dɪˈgreɪd /

verb (used without object)

biodegraded, biodegrading
  1. to decay and become absorbed by the environment.

    toys that will biodegrade when they're discarded.


Other Word Forms

Etymology

Origin of biodegrade

First recorded in 1970–75; back formation from biodegradable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Wie’s group is developing versions of these robots that biodegrade after use, eliminating the need for surgical removal, and coatings that make the robots compatible with human tissue.

From The Wall Street Journal Nov. 1, 2025

The Environment for Development, a global research network, estimates that around a third are unusable items that end up in landfills -- mostly made from plastic-based materials like nylon and polyester that does not biodegrade.

From Barron's Oct. 13, 2025

One of the most common compounds is a polyester known as PLA, short for polylactic acid, which will biodegrade in an industrial compost setting.

From New York Times May 20, 2024

Enzymes have evolved alongside them to break down their chemical bonds, allowing microbes to biodegrade organic material.

From BBC Nov. 27, 2023

As only a small number of marine microorganisms able to biodegrade PBS had been discovered previously, Sawabe and his colleagues set out to try to find others and with better activity.

From Science Daily Oct. 16, 2023

Once underwater, it is "technically impossible to neutralise", and can take decades to be biodegraded by marine micro-organisms.

From BBC Jan. 23, 2025

At intervals of 90 and 200 days, almost 100% of the petroleum-based microplastics were recovered, meaning none of it had biodegraded.

From Science Daily Mar. 21, 2024

They usually survived about 45-60 days in laboratory conditions before they naturally biodegraded.

From Science Daily Nov. 30, 2023

It can be heavy or light, more or less biodegraded, depending on the same factors that affect oil in land-based deposits.

From Los Angeles Times Oct. 6, 2021

Like other scientists, she said the report failed to explain how it reached its estimates on the amount of oil that was biodegraded naturally, or dispersed with chemicals.

From The Guardian Aug. 5, 2010

Audiences have seen countless times how this progression can devolve from one incarnation to the next, as if a property were subject to imaginative biodegrading.

From Washington Post Dec. 19, 2022

Fully biodegrading PVA requires the presence of the right species and concentration of microorganisms, which also have to be trained to break the compound down, Rolsky said.

From Washington Post Nov. 15, 2022

Smoke and biodegrading remnants release carbon, methane and other greenhouse gases into the air.

From Washington Times Feb. 14, 2018

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training