hazardoushaz‧ard‧ous /ˈhæzədəs $ -zər-/ ●○○ adjective 
The chemicals in paint can be hazardous to health. the disposal of hazardous waste► see thesaurus at dangerous, harmful
EXAMPLES FROM OTHER DICTIONARIES
- a hazardous occupation
- All of us knew that the expedition was likely to be extremely hazardous.
- Being the President's bodyguard is obviously a hazardous occupation.
- Employees who were exposed to hazardous substances are now claiming compensation.
- In 1820, a voyage to Australia was a hazardous undertaking.
- Lead is one of the most hazardous substances known, causing cancer and nerve damage.
- The building is now unoccupied, and all radioactive or hazardous materials have been removed.
- We need better regulations regarding the transportation of hazardous waste along public roads.
- Bush also proposed raising $ 75 million with new user fees for hazardous material shippers and owners of pipelines and railroads.
- But there are things that individuals, organizations, and governments have learned to do to make life less hazardous there.
- Since hazardous jobs represent a small part of total employment, these workers are unrepresentative of the general population.
- The hazardous nature of this undertaking is not in dispute.
- There are also other consents which are required, for example, before introducing hazardous substances.
- This, though less hazardous than the rape of Persephone, was perilous enough to satisfy the most ambitious.
- Was the hazardous code of the duel a greater injustice than the unfairness of the law?
THESAURUS
likely to cause death or serious harm, or cause something bad to happen: · Snow and ice are making driving conditions very dangerous.· dangerous drugs· a dangerous criminal
if something is risky, something bad could easily happen or you could easily make a mistake: · Doctors said it was too risky to operate.· a risky situation
especially written dangerous – used especially about substances, jobs, and journeys: · hazardous waste· hazardous chemicals· hazardous occupations· The expedition was extremely hazardous.
dangerous because someone is very likely to be hurt – used especially about places or conditions: · The roads are unsafe for cyclists.· unsafe working conditions
formal literary places or conditions that are treacherous are very dangerous for anyone who is walking, driving, climbing etc in them: · The snow turned to ice, making conditions treacherous for walkers.· the island’s treacherous coastline· With no lighting, the roads can be treacherous.
literary a perilous journey, situation etc is very dangerous: · a perilous journey across the sea
[only before noun] a high-risk job, situation, or behaviour is likely to be dangerous: · Drug users need to know that sharing needles is high-risk behaviour.
causing physical harm – used especially about things that cause harm to your health, the environment etc: · Smoking is harmful to your health.· drugs with harmful side effects
to have a harmful effect on someone or something. This phrase is very commonly used in everyday English when saying that something is harmful: · Everyone knows that too much alcohol is bad for you.
used about things that cause permanent physical harm, or that have a bad effect in other ways, for example on people’s opinion of someone: · Acid rain has a damaging effect on trees and the soil.· The allegations were very damaging to his career.· Constant criticism is damaging to a child’s self-esteem.
formal causing harm or having a bad effect on something: · Employers are worried that the new laws will have a detrimental effect on their business.· chemicals that are detrimental to the environment· policies that have been detrimental to the interests of old people
a negative effect is one that is bad and causes problems: · The car tax had a negative effect on car sales.· the negative impact of the recession in the US
hazardous substances are likely to be dangerous to people’s health and safety: · Hazardous waste needs to be disposed of safely.· hazardous chemicals
toxic substances, smoke etc are poisonous: · toxic waste· toxic fumes· Toxic chemicals spilled into the river.
formal used about something that has a gradual bad effect which is not easy to notice, especially on people’s morals, or on their health: · the pernicious effects of violent video games· the pernicious effect of secondhand smoke
containing or producing a substance that is likely to kill you, or make you very ill: · poisonous gas· poisonous snakes· The plant is poisonous to humans and animals.
toxic chemicals and waste are poisonous to people and the environment: · Crops were sprayed with highly toxic chemicals.· Lead is toxic to humans.· The site was used for the disposal of toxic waste.
[usually before noun] formal noxious substances and gases are poisonous: · Vehicles pollute the air with noxious fumes· The soil may be contaminated with noxious substances.
[usually before noun] hazardous substances are likely to harm people, animals, or the environment if they are not dealt with or got rid of carefully: · Lead is one of the most hazardous substances known, causing cancer and nerve damage.· The building is now unoccupied, and all radioactive or hazardous materials have been removed.· hazardous nuclear waste
extremely poisonous and likely to kill you – used especially about poisons and snakes: · a deadly poison· a deadly snake· Terrorists plotted to release a deadly gas.
containing or producing a substance that is likely to kill you, or make you very ill: · poisonous gas· poisonous snakes· The plant is poisonous to humans and animals.
toxic chemicals and waste are poisonous to people and the environment: · Crops were sprayed with highly toxic chemicals.· Lead is toxic to humans.· The site was used for the disposal of toxic waste.
[usually before noun] formal noxious substances and gases are poisonous: · Vehicles pollute the air with noxious fumes· The soil may be contaminated with noxious substances.
[usually before noun] hazardous substances are likely to harm people, animals, or the environment if they are not dealt with or got rid of carefully: · Lead is one of the most hazardous substances known, causing cancer and nerve damage.· The building is now unoccupied, and all radioactive or hazardous materials have been removed.· hazardous nuclear waste
extremely poisonous and likely to kill you – used especially about poisons and snakes: · a deadly poison· a deadly snake· Terrorists plotted to release a deadly gas.
Longman Language Activatordangerous someone or something that is dangerous is likely to cause death or serious harm: · Snow and ice are making driving conditions very dangerous.· dangerous drugs such as heroin and crack· It's dangerous work but for men like Clement, summer firefighting is an important source of income.highly/extremely dangerous (=very dangerous): · Police described the three escaped prisoners as highly dangerous.it is dangerous (for somebody) to do something: · The pilot says it's too dangerous to try to land the plane in this weather.· It's too dangerous for the kids to play in the street.
if you do something risky , it is easy to make a mistake that might cause death or serious harm - use this about things that you decide to do although you know they may be dangerous: · He'll have to land the aircraft in a field. It's risky, but there's no alternative.· Personal insurance is expensive if you plan to take part in a risky sport such as parachuting.risky to do something: · The State Department advised its employees that fighting near the borders made it too risky to leave the country.risky business (=something you do that is risky): · the risky business of putting a space vehicle into orbit
something that is poisonous will make you ill or kill you if you swallow it or breathe it: · The boy died after eating poisonous berries.· Many of our rivers are full of poisonous chemicals.highly poisonous: · Carbon monoxide is a highly poisonous gas.
especially written a hazardous activity or journey is one that is dangerous. Hazardous chemicals or substances are dangerous - used especially on warning signs: · All of us knew that the expedition was likely to be extremely hazardous.· Being the President's bodyguard is obviously a hazardous occupation.· In 1820, a voyage to Australia was a hazardous undertaking.· Employees who were exposed to hazardous substances are now claiming compensation.
a high-risk job, situation, place, or type of behaviour is likely to be dangerous: · A polio vaccine is recommended before travelling to high-risk areas.· We are getting the message across to drug users that sharing needles is a high-risk behaviour.
places or conditions that are treacherous are very dangerous for anyone who is walking, driving, climbing etc in them: · Strong winds and heavy rain are making driving conditions treacherous in some areas.· There are treacherous underwater currents along this stretch of coast.
written a perilous journey, situation etc is very dangerous - used especially in literature: · Refugees cross the rugged San Ysidro mountains, and it is always a perilous trip.· Blondin soon became famous as a rope-dancer. Nothing was too perilous for him to attempt.
likely to harm people's health or the environment · Scientists have recommended that new technology be used to target harmful bacteria.· Many of the products that we have around our homes are harmful if swallowed.· The protests were aimed at ending the dumping of harmful industrial waste at sea.harmful to · The sun's rays can be very harmful to the skin.
something that is poisonous contains a chemical that makes people, animals, or plants etc very ill or could kill them if they breathe it, swallow it, or touch it etc: · Don't drink that -- it's poisonous!· The adder is the only poisonous snake in Britain.highly poisonous: · Carbon monoxide is a highly poisonous gas, mostly produced by cars.
: hazardous chemicals/waste/substances etc substances that are poisonous and will harm people, animals, or the environment if they are not dealt with or got rid of carefully: · Lead is one of the most hazardous substances known, causing cancer and nerve damage.· The building is now unoccupied, and all radioactive or hazardous materials have been removed.· We need better regulations regarding the transportation of hazardous waste along public roads.
chemicals, gases, or waste products that are poisonous and harmful to people, animals, or the environment - used especially in technical or scientific contexts : · Research has found that the drug contains a toxic chemical that can cause respiratory problems.toxic waste (=from factories etc): · We need more installations for the disposal of toxic waste.highly toxic: · highly toxic radioactive waste productstoxic to: · Carbon dioxide is not highly toxic to animals or humans in small amounts.
formal a noxious chemical or gas harms your health and is very unpleasant: · Residents have to put up with noxious fumes from the nearby factory.· Increasing tax on petrol would encourage people to drive smaller cars with fewer noxious emissions.
COLLOCATIONS FROM THE ENTRY The chemicals in paint can be hazardous to health. the disposal of hazardous wasteCOLLOCATIONS FROM OTHER ENTRIES
dangerous, especially to people’s health or safetyhazardous to The chemicals in paint can be hazardous to health. the disposal of hazardous waste (=very dangerous)· There are major problems over the disposal of hazardous chemicals.
· They set off on the dangerous journey down the river.
· Using chemicals or other hazardous substances at work can put people's health at risk.
· the illegal dumping of hazardous waste
COLLOCATIONS FROM THE CORPUSADVERB· No doubt the journey back was as hazardous as it was coming.· In-line skating is classified as hazardous.· All agree that finding ways to present your case will prove as hazardous as steering a passage through a sand shoal.· The Department of Transportation classifies the oxygen generators as hazardous materials when carried as company material in cargo compartments.· Between countries, and even within them, there is disagreement about what constitutes waste and what should count as hazardous.
· Weather and sea conditions during the service were extremely hazardous, demanding absolute concentration to maintain control of the lifeboat.· It contains a mass of radioactive byproducts spawned during its time in the reactor, some of them extremely hazardous.· Drugs prescribed by doctors can be extremely hazardous if used in the wrong way.
· The island already has more hazardous plants than any other part of Britain.· Theirs is a dangerous job that became even more hazardous once their quarry shifted into the mountains.· Foraging here is a little easier, but it is also more hazardous.· In any case, herbicides broke down quickly and were probably more hazardous to the crews delivering them than to anyone else.· Prophesying the future is even more hazardous.· Unless you have a serious leak, the quick solution is probably more hazardous than the problem.· Radium is tens of times more hazardous than plutonium and thousands of times more hazardous than tritium.
· Storytelling to six-year olds above all is the most hazardous and the most enjoyable experience I know, a sort of terror-sport.· Newly married and ecstatically happy, he yet felt compelled to offer himself for one of the war's most hazardous enterprises.
· What is important is that all the chlorine in the VOCs ends up as chloride ion rather than other potentially hazardous chlorinated compounds.· He considers such maneuverings a ridiculous way to run a government and still potentially hazardous to the credit markets here and abroad.· However, many potentially hazardous chemical installations are not covered by such regulations.· Start to phase out nuclear fission power stations, which are prohibitively expensive and potentially hazardous.· Health and health studies Taxes on addictive and potentially hazardous products like tobacco and alcohol produce a dual effect.· Safety All products are potentially hazardous even detergents.· If the conditions were such during trial that an actual or potentially hazardous situation arose questions of safety predominate.· With a nuclear station decommissioning was a lengthy, expensive and potentially hazardous enterprise.
NOUN· However, many potentially hazardous chemical installations are not covered by such regulations.· Stolen chemicals: A car containing hazardous chemicals was stolen in South Hylton, Sunderland.· Hazardous chemicals: New powers over the storage and disposal of hazardous chemicals will be introduced.· Existing powers over importation, use and supply of hazardous chemicals will be extended.· Safer handling, storage and transport of hazardous chemicals will be held in Aberdeen on 28 February 1992.· Over the years indiscriminate dumping has resulted in a large number of environmentally dangerous sites that are leaking toxic and hazardous chemicals.
· Wage differentials for hazardous jobs reflect the risks of both deaths and injuries.· Since hazardous jobs represent a small part of total employment, these workers are unrepresentative of the general population.
· Success has been a along, hazardous journey for Blake Baxter.· Diane and her husband Geoff have now completed the trip and in this article she recounts their hazardous journey.· The volunteers supervise the turtle's hazardous journey down the beach to the water, deterring predators and tourists.· And he would be the first to say that the time spent on making those long, hazardous journeys has paid dividends.
· If hazardous materials are left after minimisation, there are possibilities for recycling.· The Department of Transportation classifies the oxygen generators as hazardous materials when carried as company material in cargo compartments.· Extracted hazardous materials Crec charges its clients 82 cents per kilogram to dismantle computers in a factory once used to manufacture them.· The dig might require such a specialist, trained to handle hazardous materials.· Efficient waste management requires that hazardous materials are defined and treated more carefully than the very large volumes of non-hazardous wastes.· The site was used by the Royal Navy for years to dump blue asbestos and other hazardous materials from ships and dockyards.· Projects already undertaken for pharmaceutical customers have involved removal of plant and equipment contaminated with low-levels of radioactivity and other hazardous materials.· Currently an estimated 1,600 vessels carrying fuels and other hazardous materials pass through the strait annually.
· Parliamentary Privilege Being a Member of Parliament during the constitutional struggle of the seventeenth century could be a hazardous occupation.· The firearm was perhaps a necessary item of defense in what was obviously a hazardous occupation.· The use of spears is possible yet arguably a hazardous occupation more suited to hunting as a sport.
· There are also other consents which are required, for example, before introducing hazardous substances.· Afterwards, the city discovered the hazardous substances in the groundwater that threatened the nearby public drinking water supply.· A number of hazardous substances are resistant to biodegradation.
· Treating hazardous waste at Cory Environmental's West Thurrock plans.· A majority of the industrial groups produce less than 10, 000 metric tons of hazardous waste.· In terms of databases on hazardous wastes, attention has already been drawn to the waste disposal plans prepared by WRAs.· That is particularly relevant when one is considering a diverse range of hazardous wastes.· The Labour party believes that there are a number of essential approaches to toxic and hazardous waste.· The treatment of hazardous waste is particularly expensive and needs especially sophisticated equipment.· We should reduce the amount of hazardous waste that is produced when making products - often useful products - for the market.
The chemicals in paint can be hazardous to health. the disposal of hazardous waste► see thesaurus at dangerous, harmful