[v. im-preg-neyt, im-preg-neyt; adj. im-preg-nit, -neyt]
verb (used with object), impregnated, impregnating.
to make pregnant; get with child or young.
to fertilize.
to cause to be infused or permeated throughout, as with a substance; saturate: to impregnate a handkerchief with cheap perfume.
to fill interstices with a substance.
to furnish with some actuating or modifying element infused or introduced; imbue, infect; tincture.

1535–45; < Late Latin impraegnātus past participle of impraegnāre to fertilize, impregnate, equivalent to im- im-1 + praegn- (see pregnant) + -ātus -ate1

impregnation, noun
impregnator, noun
impregnatory [im-preg-nuh-tawr-ee, -tohr-ee] , adjective
nonimpregnated, adjective
reimpregnate, verb (used with object), reimpregnated, reimpregnating.
reimpregnation, noun
self-impregnated, adjective
self-impregnating, adjective
self-impregnation, noun
self-impregnator, noun
unimpregnated, adjective

3. permeate, infuse, penetrate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
1.  to saturate, soak, or infuse: to impregnate a cloth with detergent
2.  to imbue or permeate; pervade
3.  to cause to conceive; make pregnant
4.  to fertilize (an ovum)
5.  to make (land, soil, etc) fruitful
6.  pregnant or fertilized
[C17: from Late Latin impraegnāre to make pregnant, from Latin im-in-² + praegnanspregnant]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

c.1600, from L.L. imprægnatus "pregnant," pp. of imprægnare "to render pregnant," from in- "in" + prægnare "make pregnant" (see pregnant).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

impregnate im·preg·nate (ĭm-prěg'nāt)
v. im·preg·nat·ed, im·preg·nat·ing, im·preg·nates

  1. To make pregnant; to cause to conceive; inseminate.

  2. To fertilize an ovum.

  3. To fill throughout; saturate.

im'preg·na'tion n.
im·preg'na'tor n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Three hundred and seventy-one blastocysts survived, and these were used to
  impregnate surrogate females.
They don't run away, they don't impregnate anything.
Clayton has the perfect solution: he'll impregnate her, and hubby will be none
  the wiser.
Instinct tells males to ejaculate because that is the way to impregnate.
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