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poisonous

[poi-zuh-nuhs]

Example Sentences

adjective

full of or containing poison: poisonous air; a poisonous substance.

harmful; destructive: poisonous to animals; poisonous rumors.

deeply malicious; malevolent: poisonous efforts.

Origin:
1565–75; poison + -ous

Related forms

poi·son·ous·ly, adverb

poi·son·ous·ness, noun

non·poi·son·ous, adjective

non·poi·son·ous·ly, adverb

non·poi·son·ous·ness, noun

EXPAND

sem·i·poi·son·ous, adjective

sem·i·poi·son·ous·ly, adverb

un·poi·son·ous, adjective

un·poi·son·ous·ly, adverb

COLLAPSE

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source

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Poisonous is always a great word to know.

So is interrobang. Does it mean:

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.

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Example Sentences

If treatment is obtained soon enough, only a small percentage of those bitten by a poisonous snake die.

One of the poisonous aspects of being on the academic job market is feeling that one can't or shouldn't talk to people about it.

In the current climate, however, such provisions look more poisonous than ever.

EXPAND

If treatment is obtained soon enough, only a small percentage of those bitten by a poisonous snake die.

One of the poisonous aspects of being on the academic job market is feeling that one can't or shouldn't talk to people about it.

In the current climate, however, such provisions look more poisonous than ever.

Some species, including the popular flathead catfish, aren't poisonous at all.

Snake loads up on noxious predator repellant by consuming poisonous toads.

Arizonans get into more trouble with poisonous creatures than do the residents of any other state.

All parts of plant, especially bulbs, are poisonous if ingested.

Some sea snails produce poisonous darts to hunt small fish and defend themselves.

The fins of these prickly fish carry poisonous venom.

Now the world is being asked to digest big claims for this poisonous plant.

Scientists have discovered a long-armed octopus that mimics poisonous creatures of the sea to avoid its predators.

There are so many poisonous chemicals in our food--Parkinson's is now connected to pesticides.

Furthermore, our primal nature avoids food that are poisonous.

All parts of many species are poisonous if ingested.

Australia is full of them, often big and occasionally poisonous.

The smoke, it says, contains quite a large proportion of the poisonous gas carbon monoxide.

At the moment, ships' hulls are kept clean using poisonous chemicals.

In extreme cases, the poisonous venom of a brown recluse bite produces nasty effects.

The atmosphere is full of smoke thick forming its perpetual cloud with its suffocating and poisonous gases.

All parts, especially seeds, are poisonous if ingested.

They can even cope with poisonous chemicals, fires, freezing temperatures and floods.

Windshield washer fluid is a brightly colored liquid made of methanol, a poisonous alcohol.

Tighter credit and falling house prices will prove a poisonous combination.

Psychedelic skin tones tell predators this shell-less snail packs a poisonous punch.

There is no trade-off between food and fuel either, because the oil is poisonous.

All parts, especially seedpods, are highly poisonous if ingested.

The seeds in the top image contain poisonous gossypol.

Plant fertilizers are mildly poisonous if swallowed in small doses.

Now, however, two newer sources of argument are likely to prove altogether more poisonous.

The stingray's tail features a poisonous barb, which is used only in self-defense.

They said it could leak poisonous gases into the house.

All parts, especially fruits, are poisonous if ingested.

Similarities between arsenic and phosphorus are also what make the element so poisonous.

Hydrocarbons are the primary poisonous ingredient in oil paints.

So there will be little respite from the dense data smog, which some researchers fear may be poisonous.

Learn how to avoid being bitten by poisonous snakes and insects.

Of course, they are convinced everything is poisonous.

Autumn crocuses contain a fascinating, poisonous akaloid called colchicine.

Try picking off enemies with poisonous snakes or mushrooms, or shooting a beehive off a tree limb so it lands on foes.

It can take several weeks or longer to recover from some of the poisonous effects.

The small amounts of poisonous mercury they contain are also in the sights of many lawmakers.

The bright red color of a fire urchin warns predators that its spines are poisonous.

It kills both directly and by release of poisonous gases.

Moreover, being part of the nightshade family, those seed pods are actually poisonous.

Male funnel-web spiders are more poisonous than females.

On the other hand they are, by definition, poisonous.

The distinctive pattern warns predators that the insects are foul tasting and poisonous.

Now poisons will be more poisonous when the globe boils over.

Maybe that's not a bad thing, since this beauty is poisonous in all its parts.

Material containing poisonous elements such as arsenic is unsuitable for smelting because of the risk of pollution.

Marine animal stings or bites refer to poisonous bites or stings from any form of sea life, including jellyfish.

That's an awfully poisonous thing to suggest, whatever one thinks about the situation.

Sturdy plants and sandboxes are in, poisonous plants out.

The plant's chemicals are poisonous to many butterfly predators but not to butterflies themselves.

Health food stores usually have the kind which is clear, rather than dyed a poisonous green.

Some people will probably write suggesting that you craft a poisonous reference letter.

The plumes of poisonous gas that leaked from the plant killed thousands within minutes.

By game's end you'll have many different minions, from fireball lobbers to poisonous backstabbers.

And the poisonous ones don't all inject venom into their prey through hollow.

These developments were more important than ever during a time when poisonous substances were everywhere.

All remedies have proved powerless to drive the poisonous blood of the dead man from the doctor's system.

Some animals stay safe by copying the look of a poisonous neighbor.

People sleeping outdoors narrowly missed a violent death from the poisonous fangs of the serpents.

Bed bugs, poisonous centipedes, and more take the screen in wild footage of bugs' lives.

Mercury is a naturally occurring poisonous metal that is released into the environment from industrial sources.

Silvey is misinformed as to the poisonous ingredient used.

As the climate gets more poisonous and elections approach in.

To get gold from rocks, many miners use a poisonous metal called mercury.

Wood alcohol, also called methyl alcohol or methanol, is an extremely poisonous chemical found in paint remover.

But beware: while there's good fungus among us, the tasty porcini has some poisonous cousins.

Pickerel frogs exude a poisonous chemical from their skins, protecting them from.

Some children engage in ground or plant eating experiences until they meet an urticating or poisonous one.

During the day the poisonous mushrooms are yellow-orange.

Many nocturnal snakes in this area are venomous, or poisonous.

But the adjectives have been dropped, which makes chemical synonymous with toxic or poisonous.

The plague, for example, was originally thought to spread through miasma-a poisonous vapor derived from decaying matter.

Some prospecting companies used giant water jets to cut into riverbanks and poisonous mercury to separate the gold from rock.

It's a well-earned name because its swarming with hungry mosquitoes, pestering gnats and poisonous snakes.

Instead, the snake stores the toad toxins in glands in its neck, making it too poisonous to eat.

We learned the difference between venomous and poisonous.

When he's not chasing down poisonous snakes or scouring the woods for small animal skeletons.

See a greenspot nudibranch feeding on poisonous sea plants.

Read field notes from one explorer's adventure in the poisonous cave.

Octopus venom also appears to contain similar proteins to those in other poisonous creatures such as snakes.

The concern, he says, isn't the lava so much as the poisonous chlorine and sulfur gases that rise from the volcano's vent.

Not all wood holds up well to the elements and some wood can even leach poisonous materials into your compost pile.

Also watch out for prairie rattlesnakes, poisonous spiders, and stinging insects.

Venus has a thick atmosphere of carbon dioxide, with traces of poisonous gases such as sulfur dioxide.

Nitric acid is a poisonous clear-to-yellow colored liquid.

COLLAPSE

Collins

World English Dictionary

poisonous (ˈpɔɪzənəs)

—*adj*
1.	having the effects or qualities of a poison
2.	capable of killing or inflicting injury; venomous
3.	corruptive or malicious

'poisonously

—*adv*

'poisonousness

—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source

American Heritage

Medical Dictionary

poisonous poi·son·ous (poi'zə-nəs)
adj.
Relating to or caused by a poison.

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Matching Quote

"Compassion is the antitoxin of the soul: where there is compassion even the most poisonous impulses remain relatively harmless."

-Eric Hoffer

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