• WordNet 3.6
    • adj poisonous marked by deep ill will; deliberately harmful "poisonous hate","venomous criticism","vicious gossip"
    • adj poisonous not safe to eat
    • adj poisonous having the qualities or effects of a poison
    • ***

Additional illustrations & photos:

The queen puts a poisoned nail into the oar The queen puts a poisoned nail into the oar
Types of Poisonous Snakes Types of Poisonous Snakes
Amarylla. Chief's Poison Vegetable Amarylla. Chief's Poison Vegetable

Webster's Revised Unabridged Dictionary
  • Interesting fact: Over 90% of poison exposures occur in homes
    • a Poisonous Having the qualities or effects of poison; venomous; baneful; corrupting; noxious.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The poison arrow frog has enough poison to kill about 2,200 people.
    • poisonous Having the properties of a poison; containing poison; venomous; hence, corrupting, vitiating, or impairing.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Tomatoes were originally thought to be poisonous.
    • adj Poisonous having the quality of poison: destructive: impairing soundness or purity
    • ***


  • Samuel Taylor Coleridge
    “Alas! they had been friends in youth; but whispering tongues can poison truth.”
  • Source Unknown
    Source Unknown
    “I hate the place like poison with a sincere hatred.”
  • William Blake
    “Expect poison from standing water.”
  • Source Unknown
    Source Unknown
    “Love is like a poisonous mushroom -- you don't know if it is the real thing until it is too late”
  • Euripides
    “I love the old way best, the simple way of poison, where we too are strong as men.”
  • John Locke
    “Parents wonder why the streams are bitter, when they themselves have poisoned the fountain.”


One man's meat is another man's poison - This idiom means that one person can like something very much, but another can hate it.
Poison pill - A poison pill is a strategy designed to prevent a company from being take over.
Poisoned chalice - If someone is given a poisoned chalice, they are given a job or task which appears attractive but is actually doomed to failure or beset with problems that will damage their reputation or harm them.
What's your poison? - This is a way of asking someone what they would like to drink, especially alcohol.


Chambers's Twentieth Century Dictionary
Fr.,—L. potio, a draught—potāre, to drink.


In literature:

The chances are that they contain a deadlier poison called opium.
"Fifteen Years in Hell" by Luther Benson
It is not poisoned, it poisons itself.
"Shakespearean Tragedy" by A. C. Bradley
Of the poison tree the seed only has thus far been sown.
"The Poison Tree" by Bankim Chandra Chatterjee
As a rule it seems to me that bad forms of blood-poisoning of this nature are incurable.
"The Healthy Life, Vol. V, Nos. 24-28" by Various
You want to have your poison ready for Mr.
"Trees, Fruits and Flowers of Minnesota, 1916" by Various
I also used poisoned grains and gases but I do not recommend them.
"Growing Nuts in the North" by Carl Weschcke
It contains many poisonous as well as edible mushrooms.
"Among the Mushrooms" by Ellen M. Dallas and Caroline A. Burgin
Whenever the absorption of poison does take place, fatal consequences usually follow.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
I know of no other wild plants that are poisonous to the touch; the following will poison only if taken inwardly.
"On the Trail" by Lina Beard and Adelia Belle Beard
It keeps out all sorts of poisons and the germs of blood-poisoning and such diseases.
"The Child's Day" by Woods Hutchinson
Two exactly similar cases of poisoning at the same time and all because copper vessels were used and not properly cleaned.
"The Poor Plutocrats" by Maurus Jókai
I don't know what they are, but you may trust me, they're not poison.
"With Clive in India" by G. A. Henty
Yet, the poignard being poisoned, Soderini died of it.
"Sketches and Studies in Italy and Greece, Complete" by John Symonds
Anaesthetics and poisons abolish the response.
"Response in the Living and Non-Living" by Jagadis Chunder Bose
The sale of poisons is regulated by various Acts, but chiefly by the Pharmacy Act, 1868, and by the Poisons and Pharmacy Act, 1908.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
The poison of German propaganda was at work.
"Kelly Miller's History of the World War for Human Rights" by Kelly Miller
KING: The Emperor has poisoned the cups!
"Plays of Near & Far" by Lord Dunsany
I feel as though I ought to choke or take poison, or something of that sort.
"A Honeymoon in Space" by George Griffith
The insidious poison, however, has already begun to take effect.
"The Complete Opera Book" by Gustav Kobbé
I shall be poisoned with arsenic.
"In the Roar of the Sea" by Sabine Baring-Gould

In poetry:

It makes the young man poison all
The tissues of her system,
And various diseases make
This maid their deathly victim.
"Strong Drink" by Frank Barbour Coffin
All changes pass me like a dream,
I neither sing nor pray;
And thou art like the poisonous tree
That stole my life away.
"Love and Hate" by Elizabeth Eleanor Siddal
Our heads that once were reeling,
Now shun the poisoned thing,
And hearts once lost to feeling,
Now merrily, merrily sing.
"Away With Melancholy" by John Pierpont
Which pleasure now like poison turns
Their joy to heaviness;
Yea, like the gall of asps it burns,
And doth them sore oppress
"Of Hell And The Estate of Those Who Perish" by John Bunyan
The poison'd chalice to my lips
Shall ne'er again be press'd
The Pledge I'll ever, ever keep,
For by the Pledge I'm bless'd!
"The Saving Pledge" by John Pierpont
They say that poison-sprinkled flowers
Are sweeter in perfume
Than when, untouched by deadly dew,
They glowed in early bloom.
"A Fragment" by Adam Lindsay Gordon

In news:

' Black Widow ' Accused of Poisoning New Husband.
Poisonous black widow spiders are enjoying the hot steamy summer.
His sister is convinced that the man ultimately died from the poisonous bites.
I remember the first time I actually received a cd of my own which was BBD "Poison".
"What happens to the condors as a result of lead poisoning — it's not pretty," said Burnett, who tracks California condors around the state for the Ventana Wildlife Society.
Now, thanks to Michigan governor Rick Snyder, teens who need help in a situation involving alcohol poisoning can go to authorities without fear of punishment.
Many mosquito species have become resistant to the poison.
Two Canadian sisters found dead in their Thailand resort in June might have died from DEET poisoning, CBC News reported today.
Seeing dehydration , stress, carbon monoxide poisoning in hurricane aftermath.
Poisoning as a result last year's oil spill is another possible culprit.
Only one in six Americans washes reusable totes, increasing the risk of food poisoning.
Hairball 's stunning recreations include KISS, Guns n Roses, Whitesnake, Bon Jovi, Def Leppard, Motley Crue, Ozzy, AC/DC, Poison and more.
The man allegedly told police he put poison on his children's pizza.
Netflix Inc said Monday that it has adopted a shareholder rights plan, also known as a poison pill.
Poison pill would flood the market with additional shares.

In science:

Angular momentum and energy conservation and the preservation of the Poison bracket structures are discussed in Section IV where the validity of Eq. (1) is established.
Discrete-to-continuum transitions and mathematical generalizations in the classical harmonic oscillator
There is poison gas that can be released by means of particle decay from a radioactive sample that is also within the box.
From Knowledge, Knowability and the Search for Objective Randomness to a New Vision of Complexity
Observe that the numerator in (10) represent the Poison bracket {Φ, H} = ˙Φ and the denominator is ||∇Φ||2 .
Nonlinear evolution of coarse-grained quantum systems with generalized purity constraints
We see that, when µ = 0, the Poison bracket (28) is zero and the gconstrained equations reduce to the Schroedinger equation.
Nonlinear evolution of coarse-grained quantum systems with generalized purity constraints
The location of the instability st rip is “fuzzy ”, because the red and blue edges of the strip depend on the He/C/O abundance ratio in the driving region; too high an He abundance poisons pulsations (Quirion et al. 2007).
Iron abundance in the prototype PG1159 star, GW Vir pulsator PG1159-035, and related objects
This is same as the Rj being independent Poison with mean km/n conditioning on (2).
On the satisfiability of random regular signed SAT formulas
The quantum de Rham cohomology QhH ∗dR (M ) of a Poison manifold has the fol lowing properties: α ∧h β = (−1)|α||β |β ∧h α, (α ∧h β ) ∧h γ = α ∧h (β ∧h γ ), for α, β , γ ∈ QhH ∗dR (M ).
On Quantum de Rham Cohomology
And (often) it is important that no poisonous by-products are released.
Theory of Adsorption on Metal Substrates
We end this section by noting that despite its high reactivity for CO oxidation, elemental Ru will not be used in automotive catalysts because a volatile Ru oxide exists which is highly poisonous.
Theory of Adsorption on Metal Substrates
However, it is important to notice that while the velocity of c relative to a might be large, it can’t be too close to 1 since, in this case, due to relativistic effects, the small shifts due to Poison scattering in one frame might look like very ”long” in another one.
Causal set as a discretized phase spacetime
Lensing observables can be derived from the ’lensing potential’, ψ , which can be calculated from the Poison Equation ∇2ψ = 2κ, where κ is the convergence and is a weighted integral of mass along the line of sight.
Image processing challenges in weak gravitational lensing
In Silent Spring, Rachel Carson exposed how corporations poisoned the environment with the products of science.
Physics Education Research: Or it's so hard to find good help these days
The symplectic 2-form is obtained by the Poison bracket of Dirac’s constraints which is also the inverse of the Hamiltonian operator.
Dirac Analysis and Integrability of Geodesic Equations for Cylindrically Symmetric Spacetimes
The modifie d problem reverses the direction of the poison flows and imposes some additional constraints.
Polynomial-time algorithms for coding across multiple unicasts
Sc ∪Sc′ , pushing session c individual poison units through the joint poison path segment.
Polynomial-time algorithms for coding across multiple unicasts