toxic

adjective
tox·​ic | \ ˈtäk-sik How to pronounce toxic (audio) \

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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Synonyms & Antonyms for toxic

Synonyms: Adjective

envenomed, poison, poisoned, poisonous, venomous

Synonyms: Noun

bane, poison, toxin, venom

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

Some studies have shown that vape juice is chemically unstable and that while the cartridges sit on the shelf, reactions in the liquid can create toxic chemicals. Sara Harrison, WIRED, "Vaping May Harm Your Blood Flow—Even Without Nicotine," 20 Aug. 2019 ArcelorMittal legally discharged more than 61,000 pounds of the toxic chemical into the Little Calumet River during 2017, according to federal records. Michael Hawthorne, chicagotribune.com, "Toxic spill from northwest Indiana steel mill kills fish, forces closure of Lake Michigan beaches," 16 Aug. 2019 To make matters worse, researchers have found that many of these toxic chemicals aren’t actually listed on the packaging. Olivia Fleming, Harper's BAZAAR, "Clean Hair Care Is Hard—But Not Impossible," 12 Aug. 2019 Plastic particles at sea act as magnets for toxic chemicals and organic pollutants. Rowan Jacobsen, Outside Online, "An Ocean Plastics Field Trip for Corporate Executives," 8 Aug. 2019 George MarksGetty Images Slipping toxic chemicals and allergens to your son's partner is officially IN. Cady Drell, Marie Claire, "Hot New Trend Alert: Poisoning Your Son’s Wife," 7 Aug. 2019 No talk of harmful algae blooms, invasive species or toxic PFAS chemicals. cleveland.com, "Midwestern issues receive some play during second night of Democratic debates," 1 Aug. 2019 Watch the video above to learn more about this long history of toxic chemicals at the border. Ranjani Chakraborty, Vox, "The dark history of “gasoline baths” at the border," 29 July 2019 Not just to Ashley but also to the Premier League and football as a whole, that this man is toxic. SI.com, "Newcastle Fan Groups Issue Joint Statement Against Owner Mike Ashley," 9 July 2019

Recent Examples on the Web: Noun

Adding certain types of biomass to the soil and covering it in plastic can kill the spores, as the material decomposes and releases gas toxic to bacteria and fungi. Erik Stokstad, Science | AAAS, "Devastating banana disease may have reached Latin America, could drive up global prices," 17 July 2019 From his initial charm to his subsequent gaslighting, Parker's behavior is textbook toxic. Elena Nicolaou, refinery29.com, "Luke Parker Is The New Chad Johnson — But Even Worse," 20 June 2019 Joseph has previously tested its drinking water for 2,4-D, the less toxic of the two chemicals. Rob Davis | The Oregonian/oregonlive, oregonlive.com, "Recovery begins on Wallowa Lake barrels that may contain Agent Orange ingredients," 13 June 2019 The June failure to meet emission standards limiting air toxics represents a new challenge for Colstrip owners. Hal Bernton, The Seattle Times, "Puget Sound Energy looks elsewhere for power as pollution-test failure idles most of Montana coal plant," 27 July 2018 The Kennecott Minerals Company cleaned up toxics and donated the subsurface. Tom Kizzia, Anchorage Daily News, "Amid the ruins of the Kennecott mine, a quiet new look at a unique slice of history," 26 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 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

Statistics for toxic

Last Updated

17 Sep 2019

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 How to pronounce toxic (audio) \

Kids Definition of toxic

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

toxic

adjective
tox·​ic | \ ˈtäk-sik How to pronounce toxic (audio) \

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 How to pronounce toxic (audio) \

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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