• WordNet 3.6
    • adj impure having a physical or moral blemish so as to make impure according to dietary or ceremonial laws "unclean meat","and the unclean to you"-Leviticus 11:3"
    • adj impure (used of persons or behaviors) immoral or obscene "impure thoughts"
    • adj impure combined with extraneous elements
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Colored diamonds are caused by impurities such as nitrogen (yellow), boron (blue). With red diamonds being due to deformities in the structure of the stone, and green ones being the result of irradiation.
    • Impure Defiled by sin or guilt; unholy; unhallowed; -- said of persons or things.
    • Impure (Language) Not accurate; not idiomatic; as, impure Latin; an impure style.
    • Impure Not pure; not clean; dirty; foul; filthy; containing something which is unclean or unwholesome; mixed or impregnated extraneous substances; adulterated; as, impure water or air; impure drugs, food, etc.
    • Impure (Script) Not purified according to the ceremonial law of Moses; unclean.
    • v. t Impure To defile; to pollute.
    • Impure Unchaste; lewd; unclean; obscene; as, impure language or ideas. "Impure desires."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Unlike dogs, pigs, and some other mammals, humans cannot taste water. They taste only the chemicals and impurities in the water.
    • impure Not pure physically; mixed or impregnated with extraneous, and especially with offensive, matter; foul; feculent; tainted: as, impure water or air; impure salt or magnesia.
    • impure Not simple or unmixed; mixed or combined with something else: said of immaterial things.
    • impure Not pure morally; unchaste; obscene; lewd: as, impure language or ideas; impure actions.
    • impure Of a contaminating nature; causing defilement, physical or moral; unclean; abominable.
    • impure Not in conformity with a standard of correctness, simplicity, etc.: as, an impure style of writing.
    • impure To make impure; defile.
    • impure To grow impure.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Impure im-pūr′ mixed with other substances: defiled by sin: unholy: unchaste: unclean
    • ***


  • Ralph Waldo Emerson
    “Gross and obscure natures, however decorated, seem impure shambles; but character gives splendor to youth, and awe to wrinkled skin and gray hairs.”
  • Rainer Maria Rilke
    “All emotions are pure which gather you and lift you up; that emotion is impure which seizes only one side of your being and so distorts you.”
  • Dan Quayle
    “It isn't pollution that's harming the environment. It's the impurities in our air and water that are doing it.”
  • Wyndham Lewis
    “All orthodox opinion -- that is, today, revolutionary opinion either of the pure or the impure variety -- is anti-man.”
  • Jean Rostand
    “We are not na?ve enough to ask for pure men; we ask merely for men whose impurity does not conflict with the obligations of their job.”
  • George Bernard Shaw
    “When Satan makes impure verses, Allah sends a divine tune to cleanse them.”


Webster's Revised Unabridged Dictionary
L. impurus,; pref. im-, not + purus, pure: cf. F. impur,. See Pure


In literature:

There are two brotherhoods among men, that of purity and that of impurity.
"Serbia in Light and Darkness" by Nikolaj Velimirovic
Impure thoughts and unchaste acts are alike violations of the seventh commandment.
"Plain Facts for Old and Young" by John Harvey Kellogg
I had to put those impure, immoral questions to old and young females who were confessing their sins to me.
"The Priest, The Woman And The Confessional" by Father Chiniquy
Now, if these pores are stopped up they are of no use, and the body has to find some other way to get rid of its impurities.
"The Handy Cyclopedia of Things Worth Knowing" by Joseph Triemens
CAUSE: It may be the result of debility, constitutional diseases, inhalation of impure air, smoke, or gases.
"The Veterinarian" by Chas. J. Korinek
Phosphorus is one of the impurities in steel, and it has been the object of steel makers for years to eliminate it.
"The Working of Steel" by Fred H. Colvin
For no land is impure of itself.
"The Tribes and Castes of the Central Provinces of India--Volume I (of IV)" by R.V. Russell
This is because they have become impure.
"The Tribes and Castes of the Central Provinces of India - Volume IV of IV" by R.V. Russell
An impure young woman is an awful sight.
"Aims and Aids for Girls and Young Women" by George Sumner Weaver
Such water is practically pure, since the impurities are nonvolatile and remain in the flask A.
"An Elementary Study of Chemistry" by William McPherson

In poetry:

Dreadfully staring
Thro' muddy impurity,
As when with the daring
Last look of despairing
Fix'd on futurity.
"The Bridge of Sighs" by Thomas Hood
Remembering ills, though slight
Yet irremediable,
Brings a worse, an impurer pang
Than remembering what was well.
"Home 1" by Edward Thomas
Flesh may not hear it,
Being impure;
And mind may fear it,
May not endure;
But in the spirit--
There we are sure.
"One Day And Another: A Lyrical Eclogue – Part IV" by Madison Julius Cawein
Heavy her ire will fall on thee,
The glittering steel is sure;
Sooner or later, all agree,
She cuts off the impure.
"The Viceroy. A Ballad." by Matthew Prior
Impure, though they may plunge
Into the morning's springs,
And spirit-dulled, though they
Command the heaven's heights.
"Vultures" by Padraic Colum
Shall he that keeps his promise sure
In things both low and small,
Yet break it like a man impure,
In matters great'st of all?
"An Introduction To The Ensuing Discourse." by John Bunyan

In news:

This test method has been found applicable to the measurement of impurities found in cyclohexane .
Grain Boundary Decohesion by Impurity Segregation in a Nickel-Sulfur System Masatake Yamaguchi, Motoyuki Shiga, Hideo Kaburaki.
The determination of residual solvents (RS), formerly called organic volatile impurities (OVI), in pharmaceutical products is probably the most important application of gas chromatography in pharmaceutical quality control.
The US Pharmacopeia's revised General Chapters on elemental impurity limits and testing procedures are set to take effect in December 2012, and are to be implemented by the industry by May 2014.
USP optimizes identification tests and impurities procedures.
Norquist himself dismissed the defectors' "impure thoughts.".
Can Communism in the course of time, with sufficient dilution and added impurity, catch the multitude.
Test Method Ca 5a-40 Ca 3a-46 Ca 2c-25 or Ca 2b-38 Cc 8d-55 Cc 12-59 Ca 6a-40 Determination Free Fatty Acids Insoluble Impurities Moisture.
The recent outbreak of a potentially fatal disease linked to L-tryptophan probably came from an impurity introduced by a change in how the dietary supplement was made, scientists say.
Impurity Linked To Adverse Events.
At Evergreen Forest Products, new scanners will read rough-cut timber, showing mill workers how to get around impurities such as knots.
POMPANO BEACH, Fla. TCCD International has announced the introduction of its Geodeo Natural Deodorant Plus that works to help remove daily buildup of toxins and impurities with a Detox Complex.
TCCD International (marketers of the Naturally Fresh Deodorant Crystal) is introducing an improved GeoDeo Natural Deodorant Plus ($5.99) that helps remove daily buildup of toxins and impurities with Detox Complex, according to thecompany.
Volcanic minerals and Icelandic algae work to help fight impurities.
A Culligan reverse osmosis drinking water system uses a series of filters to reduce many microscopic impurities and chemical elements that may be in your water.

In science:

Dirichlet Impurity: Let us now consider the simple case that the closed string BMN operator has Z ′ and a Dirichlet impurity D.
Open+Closed String Field Theory From Gauge Fields
Ouvry, Random magnetic impurities and the δ impurity problem, J.
Functionals of the Brownian motion, localization and metric graphs
Starting from a given choice of the Weiss field, the impurity Green’s function has to be computed with some “impurity solver”.
Solving Dynamical Mean-Field Theory at very low temperature using Lanczos Exact Diagonalization
X being the location of the impurities and −u(x − ζ ) ≤ 0 the attractive potential created by the impurity placed at ζ .
Localization at low energies for attractive Poisson random Schr\"odinger operators
Since the impurities are randomly distributed, it is natural to model the configurations of the impurities by a Poisson process on Rd [LiGP, PF].
Localization at low energies for attractive Poisson random Schr\"odinger operators