Dictionary.com
Thesaurus.com

remediation

American  
[ri-mee-dee-ey-shuhn] / rɪˌmi diˈeɪ ʃən /

noun

  1. the correction of something bad or defective.


remediation British  
/ rɪˌmiːdɪˈeɪʃən /

noun

  1. the action of remedying something, esp the reversal or stopping of damage to the environment

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does remediation mean? Remediation is the act of remedying or correcting something that has been corrupted or that is deficient. Remediation has two main usages. Environmental remediation is the removal of pollutants or the reversal of other environmental damage, especially in a particular location, to attempt to return it to its natural state. In education, remediation refers to instruction intended to fill gaps in a student’s core education. Example: After years of legal battles, the chemical company finally agreed to begin remediation at the site of the former factory by removing toxins from the surrounding soil.

Etymology

Origin of remediation

First recorded in 1790–1800; from Latin remediātiōn-, stem of remediātiō “act or process of healing,” equivalent to remediāt-, past participle stem of remediāre “to treat (successfully), cure” + -ion, noun suffix; see origin at remedy, -ation

Explanation

Remediation has to do with righting a wrong or correcting a fault. Students who can't read well or do their multiplication tables might need remediation to bring them up to speed. Remediation is a word for fixing things that aren't right. You often hear about criminals needing rehabilitation, which is close to remediation: after remediation, you're a better or smarter person. Students who get to college but aren't quite ready for college work need remediation. In all forms of remediation, the idea is you're going to help people get better in some way.

Keep Reading on Vocabulary.com

Vocabulary lists containing remediation

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:

Persimmon Homes said remediation works would be carried out, but residents were unable to remain in place while that is completed.

From BBC Jul. 14, 2026

Amentum holds contracts in a range of sectors including space exploration, national security, robotics, and environmental remediation; and in April 2026 took over the contract for an ICE facility in Texas, Camp East Montana.

From Salon Jul. 9, 2026

As a method of coping and of shoring up the land, Ragusa enlisted a Sierra Madre company called Hardy Californians to plant a remediation seed mix across her lot.

From Los Angeles Times Jun. 24, 2026

While organizations like Visa can invest in automated remediation systems, many suppliers, software vendors and open-source projects operate with far fewer security resources.

From The Wall Street Journal Jun. 10, 2026

"By understanding the physical laws that govern fire whirls, we can harness their power beyond oil spill remediation."

From Science Daily Jun. 5, 2026

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training