toxic

adjective
tox·ic | \ˈtäk-sik \

Definition of toxic 

(Entry 1 of 3)

1 : containing or being poisonous material especially when capable of causing death or serious debilitation toxic waste a toxic radioactive gas an insecticide highly toxic to birds

2 : exhibiting symptoms of infection or toxicosis the patient became toxic two days later

3 : extremely harsh, malicious, or harmful toxic sarcasm

4 : relating to or being an asset that has lost so much value that it cannot be sold on the market

toxic

noun

Definition of toxic (Entry 2 of 3)

: a toxic substance usually used in plural

variants: or toxico-

Definition of toxic- (Entry 3 of 3)

: poison toxicology

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Other Words from toxic

Adjective

toxicity \täk-ˈsi-sə-tē \ noun

Synonyms & Antonyms for toxic

Synonyms: Adjective

envenomed, poison, poisoned, poisonous, venomous

Antonyms: Adjective

nonpoisonous, nontoxic, nonvenomous

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Examples of toxic in a Sentence

Adjective

The fumes from that chemical are highly toxic. Tests will be run to determine if the landfill is toxic.

Noun

tested for toxics in the water supply
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Recent Examples on the Web: Adjective

Wheeler may also continue Pruitt’s work of disqualifying air pollution science from being used at the agency; ignoring environmental justice; weakening oversight of toxic chemicals; and declining to prosecute polluters for environmental crimes. Emily Atkin, The New Republic, "Scott Pruitt Is Gone. His Assault on the Environment Continues.," 5 July 2018 Cigarette Butts Speaking of toxic chemicals, that's exactly what flushing cigarettes down the drain adds to the water, too, Boulden Brothers explains. Brittney Morgan, House Beautiful, "16 Things You Should Never Flush Down The Toilet," 29 June 2018 The reason is that separating a child from their parent produces toxic stress. Dylan Gee, Vox, "I study kids who were separated from their parents. The trauma could change their brains forever.," 20 June 2018 Its sap contains toxic chemicals known as photosensitizing furanocoumarins. Caitlin O'kane, CBS News, "Giant hogweed, plant that causes blindness and third-degree burns, discovered in Virginia," 18 June 2018 The pathways to these outcomes originate in early childhood through toxic stress and its weathering effect on the developing brain and body. Daniel R. Taylor, Philly.com, "My patients are kids caught in the middle of the opioid crisis. Who speaks for them?," 14 June 2018 For example, art mediums like printmaking and photography require toxic chemicals and require special ventilation and other environmental precautions. Dana Oland, idahostatesman, "This new building on BSU's campus will change Boise's iconic cityscape," 4 June 2018 As part of that plan, the city intends to provide city recreation centers with counselors the who can intervene and make referrals to appropriate social services when children and teens appear to be suffering from toxic stress. Robert Higgs, cleveland.com, "Mayor Frank Jackson appoints Tracy Martin-Thompson as point person for addressing youth crime, violence," 15 May 2018 He's also been praised by many for passionately vocalizing his views on issues of social justice, toxic masculinity, and mental health. refinery29.com, "Jonathan Van Ness Just Got Nommed For Two Emmys & He Cannot Believe It," 12 July 2018

Recent Examples on the Web: Noun

In the past, the organization has said coffee has health benefits and that the lawsuit made a mockery of the state law intended to protect people from toxics. Washington Post, "California moves to clear coffee of cancer-risk stigma," 17 June 2018 In the past, the organization has said coffee has health benefits and that the lawsuit made a mockery of the state law intended to protect people from toxics. Brian Melley, BostonGlobe.com, "California moves to clear coffee of cancer-risk stigma," 16 June 2018 In the past, the organization has said coffee has health benefits and that the lawsuit made a mockery of the state law intended to protect people from toxics. Brian Melley, BostonGlobe.com, "California moves to clear coffee of cancer-risk stigma," 16 June 2018 In the past, the organization has said coffee has health benefits and that the lawsuit made a mockery of the state law intended to protect people from toxics. Washington Post, "California moves to clear coffee of cancer-risk stigma," 17 June 2018 In the past, the organization has said coffee has health benefits and that the lawsuit made a mockery of the state law intended to protect people from toxics. Brian Melley, BostonGlobe.com, "California moves to clear coffee of cancer-risk stigma," 16 June 2018 Grassroots mobilizations and other forms of pressure helped nudge America’s political leadership to halt pipelines and craft new policies on climate change, fracking, and toxics. Christopher Sellers, Vox, "How Republicans came to embrace anti-environmentalism," 6 July 2018 In the past, the organization has said coffee has health benefits and that the lawsuit made a mockery of the state law intended to protect people from toxics. Brian Melley, BostonGlobe.com, "California moves to clear coffee of cancer-risk stigma," 16 June 2018 In the past, the organization has said coffee has health benefits and that the lawsuit made a mockery of the state law intended to protect people from toxics. Brian Melley, BostonGlobe.com, "California moves to clear coffee of cancer-risk stigma," 16 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'toxic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of toxic

Adjective

1664, in the meaning defined at sense 1

Noun

1890, in the meaning defined above

History and Etymology for toxic

Adjective

Late Latin toxicus, from Latin toxicum poison, from Greek toxikon arrow poison, from neuter of toxikos of a bow, from toxon bow, arrow

Combining form

New Latin, from Latin toxicum

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Learn More about toxic

Dictionary Entries near toxic

Toxcatl

toxemia

toxemic jaundice

toxic

toxic-

toxical

toxicant

Phrases Related to toxic

toxic (waste) dump

toxic waste

Statistics for toxic

Last Updated

22 Oct 2018

Look-up Popularity

Time Traveler for toxic

The first known use of toxic was in 1664

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More Definitions for toxic

toxic

adjective

English Language Learners Definition of toxic

: containing poisonous substances

toxic

adjective
tox·ic | \ˈtäk-sik \

Kids Definition of toxic

: containing, being, or caused by poisonous or dangerous material toxic waste toxic effects

toxic

adjective
tox·ic | \ˈtäk-sik \

Medical Definition of toxic 

(Entry 1 of 2)

1 : containing or being poisonous material especially when capable of causing serious injury or death toxic drugs toxic gas

2 : of, relating to, or caused by a poison or toxin toxic liver damage

3a : affected by a poison or toxin

b : affected with toxemia of pregnancy toxic pregnant women

toxic

noun

Medical Definition of toxic (Entry 2 of 2)

: a toxic substance

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toxic

adjective
tox·ic | \ˈtäk-sik \

Legal Definition of toxic 

1 : containing or being poisonous material especially when capable of causing death or serious debilitation

2 : having substantially lowered worth specifically : relating to or being an asset that has lost so much value that it cannot be sold on the market toxic assets toxic subprime loans

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More from Merriam-Webster on toxic

Thesaurus: All synonyms and antonyms for toxic

Spanish Central: Translation of toxic

Nglish: Translation of toxic for Spanish Speakers

Britannica English: Translation of toxic for Arabic Speakers

Comments on toxic

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