The impregnation of wood with preservative.    From Wordnet, Princeton University. 

The impregnation, whatever it was, had turned the rock blue.    From Wordnet, Princeton University. 

The process of fertilization or fecundation is also known as impregnation and conception.    From Wordnik.com.  [Woman Her Sex and Love Life] Reference

Prior to these treatments, the grains may be subjected to a variety of other treatments, such as impregnation with various compounds, or germination.    From Wordnik.com.  [All About Coffee] Reference

Pressure impregnation of bamboo using borax in Costa Rica.    From Wordnik.com.  [Chapter 7] Reference

  Every wall, save art, is white, ready for impregnation.    From Wordnik.com.  [This Time, While We're Awake] Reference

All surface water is liable to that poisonous impregnation.    From Wordnik.com.  [Origin of the Anglo-Boer War Revealed (2nd ed.) The Conspiracy of the 19th Century Unmasked] Reference

In a normal healthy couple impregnation follows one connection.    From Wordnik.com.  [Woman Her Sex and Love Life] Reference

I had witnessed the impregnation of the eggs of the females by them.    From Wordnik.com.  [The Atlantic Monthly, Volume 18, No. 106, August, 1866] Reference

Such impregnation methods double or treble the life of railway ties.    From Wordnik.com.  [Handwork in Wood] Reference

Two days after impregnation the flask B began to show signs of fermentation.    From Wordnik.com.  [The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology)] Reference

The first movement is generally felt on the 135th day after impregnation.    From Wordnik.com.  [Searchlights on Health: Light on Dark Corners A Complete Sexual Science and a Guide to Purity and Physical Manhood, Advice To Maiden, Wife, And Mother, Love, Courtship, And Marriage] Reference

Resting spores produced after fertilization either by conjugation or impregnation.    From Wordnik.com.  [Scientific American Supplement, No. 384, May 12, 1883] Reference

The impregnation of the pyroxyline with the camphor is effected in a variety of ways.    From Wordnik.com.  [Nitro-Explosives: A Practical Treatise] Reference

Conception or impregnation takes place by the union of the male sperm and female sperm.    From Wordnik.com.  [Searchlights on Health: Light on Dark Corners A Complete Sexual Science and a Guide to Purity and Physical Manhood, Advice To Maiden, Wife, And Mother, Love, Courtship, And Marriage] Reference

Under these conditions, semen may be deposited in the womb, without danger of impregnation.    From Wordnik.com.  [Sane Sex Life and Sane Sex Living Some Things That All Sane People Ought to Know About Sex Nature and Sex Functioning; Its Place in the Economy of Life, Its Proper Training and Righteous Exercise] Reference

The impregnation took place on February 10th, and on March 15th the liquid was nearly saturated.    From Wordnik.com.  [The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology)] Reference

The second danger, still greater and more certain than the first, is the danger of impregnation.    From Wordnik.com.  [Woman Her Sex and Love Life] Reference

Where such symptoms occur immediately after connection, they are a certain indication of impregnation.    From Wordnik.com.  [The Ladies Book of Useful Information Compiled from many sources] Reference

Type: wood, possibly impregnation agents, e.g. common salt, iron or copper vitriol, mercury or zinc chloride.    From Wordnik.com.  [5.1 Rigid support in drifts and stopes] Reference

The quantity of asphalt and the uniformity of impregnation is vital to avoid deformation or de-lamination of sheets.    From Wordnik.com.  [Chapter 6] Reference

The graphic pseudo-science of the impregnation-injecting Arnold's muscle-bound abdomen is more a turnoff than a riot.    From Wordnik.com.  [Arnold Proves He's Bigger Than Ever] Reference

He found the impregnation uneven, and the absorptive power high, but he did not find any arsenic, though its use was claimed.    From Wordnik.com.  [Scientific American Supplement, No. 514, November 7, 1885] Reference

Dipping nets one by one may lead to non uniform impregnation, unless care is taken to knead the net until it is evenly wetted.    From Wordnik.com.  [5. Implementation] Reference

· Must be treated with preservatives, preferably by pressure impregnation - but this prevents water collection from the roof.    From Wordnik.com.  [Chapter 5] Reference

No doubt the relative fertility and capacity for impregnation of the two varieties is affected in proportion to the change of form.    From Wordnik.com.  [Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants] Reference

In mines with defined veins without impregnation zones, coarser mined materials can make the hand-sorting or backfilling work easier.    From Wordnik.com.  [Chapter 8] Reference

It may not be generally known that union is not essential to impregnation; it is possible for conception to occur without congress.    From Wordnik.com.  [Searchlights on Health: Light on Dark Corners A Complete Sexual Science and a Guide to Purity and Physical Manhood, Advice To Maiden, Wife, And Mother, Love, Courtship, And Marriage] Reference

The females never escape and after impregnation their ovaries become filled with a red fluid which forms a valuable dye known as lac dye.    From Wordnik.com.  [Handwork in Wood] Reference

The rocks which hold these ore deposits are of Silurian age, but they received their metalliferous impregnation much later, probably in the.    From Wordnik.com.  [Scientific American Supplement, No. 446, July 19, 1884] Reference

Whoever does not trust to the method for the evidence of death of the eggs until after five weeks subsequent to impregnation, must of course wait.    From Wordnik.com.  [Scientific American Supplement, No. 392, July 7, 1883] Reference

The fry might be produced in any quantities by artificial impregnation, be preserved, and turned into the great river at the proper period of migration.    From Wordnik.com.  [Blackwood's Edinburgh Magazine — Volume 54, No. 333, July 1843] Reference

Zeospores; 2, 4, or multiciliated active automobile cells -- gonidia -- discharged from the mother cells or plants without impregnation, and germinating directly.    From Wordnik.com.  [Scientific American Supplement, No. 384, May 12, 1883] Reference

After impregnation the fertilized oosphere immediately surrounds itself with a cell-wall and becomes the oospore which by a process of growth forms the embryo of the new plant.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1] Reference