In texture the prostate is similar to an unimpregnated uterus.    From Wordnik.com.  [Surgical Anatomy] Reference

The natural size of the unimpregnated womb is three by one and three-quarter inches, and its weight is one to two ounces.    From Wordnik.com.  [The Eugenic Marriage, Volume I. (of IV.) A Personal Guide to the New Science of Better Living and Better Babies] Reference

It hangs, neck downwards, and is, in its unimpregnated condition, about two and a half inches in diameter at its upper, or widest part, tapering to a thin neck at its lower end.    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

We will not complicate the application of the method by describing other details of the development, but would merely suggest that when a lot of ova are fertilized a small portion should be left unimpregnated.    From Wordnik.com.  [Scientific American Supplement, No. 392, July 7, 1883] Reference

And such birds are of a lascivious and fertile nature, so that the impulse they need is but small when they are in this excited condition, and the secreting activity takes place quickly in them, wind-eggs forming in the unimpregnated and the eggs in those which have been impregnated growing and reaching perfection swiftly.    From Wordnik.com.  [On the Generation of Animals] Reference

The production Of living Organisms from unimpregnated eggs or seeds.    From Wordnik.com.  [On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life] Reference

Parthenogenesis—The production of living organisms from unimpregnated eggs or seeds.    From Wordnik.com.  [Glossary of the Principal Scientific Terms Used in the Present Volume] Reference

I should very much like to examine the capsule of the unimpregnated flower of A. Loddigesii.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

I found them all to be unimpregnated females; I have never yet discovered a male among them.    From Wordnik.com.  [The Dawn of Reason or, Mental Traits in the Lower Animals] Reference

However strange it may appear, or even improbable, that an unimpregnated egg can give birth to.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

Such are seen in the unimpregnated eggs of birds, and in the unimpregnated seed-vessels of vegetables.    From Wordnik.com.  [Zoonomia, Vol. I Or, the Laws of Organic Life] Reference

This affection can occur only in the pregnant animal, while dropsy of the womb occurs in the unimpregnated.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

We set at liberty an unimpregnated young queen, eleven days old, whose hive had always been deprived of males.    From Wordnik.com.  [New observations on the natural history of bees] Reference

At eleven in the forenoon, we placed ourselves opposite a hive containing an unimpregnated queen five days old.    From Wordnik.com.  [New observations on the natural history of bees] Reference

In the unimpregnated uterus the lymphatic vessels are very small, but during gestation they are greatly enlarged.    From Wordnik.com.  [VIII. The Lymphatic System. 6. The Lymphatics of the Abdomen and Pelvis] Reference

On the left side he found a second uterus, unimpregnated and of usual size, to which another ovary and tube were attached.    From Wordnik.com.  [Anomalies and Curiosities of Medicine] Reference

Now Loeb and others have succeeded in certain forms -- even in a vertebrate like the frog -- in inducing development in unimpregnated ova.    From Wordnik.com.  [Science and Morals and Other Essays] Reference

Examination with the oiled hand in the rectum will reveal the womb of the natural, unimpregnated size and shape and with both horns of one size.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

This colony was afterwards supplied with an unimpregnated queen, but they refused to accept of her, and attempted at once to smother her to death.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

Cleveland describes a discharge of an anomalous deciduous membrane during pregnancy which was probably from the unimpregnated half of a double uterus.    From Wordnik.com.  [Anomalies and Curiosities of Medicine] Reference

If a colony which has an unimpregnated queen seeks to unite with another which has a fertile one, then almost as a matter of course they are destroyed!.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

Cleveland 1.265 describes a discharge of an anomalous deciduous membrane during pregnancy which was probably from the unimpregnated half of a double uterus.    From Wordnik.com.  [Anomalies and Curiosities of Medicine] Reference

They are of small size in the unimpregnated uterus, but shortly after impregnation become enlarged and elongated, presenting a contorted or waved appearance (see page 60).    From Wordnik.com.  [XI. Splanchnology. 3d. 3. The Uterus] Reference

I was completely at a loss to account for this, as the bees having an unimpregnated drone-laying Queen, ought not to have had a single female egg from which they could rear a Queen.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

Thereupon both the sharks began to manifest great uneasiness, and eventually with fluster and splashing they worked among the fissures of the coral and shot out into the unimpregnated sea.    From Wordnik.com.  [My Tropic Isle] Reference

If by moving their hive, or in any other way, bees are made to enter a hive containing an unimpregnated queen, they will often destroy her, if they came from a family which was in possession of a fertile one!.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

The seminal reservoir sometimes becomes exhausted, before the queen dies of old age, and as it is never replenished, (see p. 44,) she can only lay unimpregnated eggs, or such as produce drones instead of workers.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

As a matter of precaution, I generally give to all my stocks that are raising young queens, or which have unimpregnated ones, a range of comb containing brood and eggs, so that they may, in case of any accident to their queen, proceed at once, to supply their loss.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

If this experiment is performed upon an old queen, in a hive in which she was put the year before, when unimpregnated, the same result will follow; for as she never left it after that event, she will have lost all recollection of its relative position in the Apiary.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

Previous to this time the anthers with their filaments, and the stigmas with their styles, are in their fetus-state sustained by their placental vessels, like the unexpanded leaf-bud; with the seeds existing in the vegetable womb yet unimpregnated, and the dust yet unripe in the cells of the anthers.    From Wordnik.com.  [The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation] Reference

"It may be set down as a rule that females which are captured at rest during the time of day or night at which they should naturally be upon the wing are unimpregnated, and may be used for attracting with fair chances of success.    From Wordnik.com.  [Practical Taxidermy A manual of instruction to the amateur in collecting, preserving, and setting up natural history specimens of all kinds. To which is added a chapter upon the pictorial arrangement of museums. With additional instructions in modelling and artistic taxidermy.] Reference

That the unimpregnated ovule becomes imbedded.    From Wordnik.com.  [Plain facts for old and young : embracing the natural history and hygiene of organic life.] Reference

Drone-laying queen on dissection, unimpregnated.    From Wordnik.com.  [Langstroth on the Hive and the Honey-Bee A Bee Keeper's Manual] Reference

1909), the repeated oestrus of unimpregnated animals (once a fortnight in rabbits) is surely comparable to menstruation.    From Wordnik.com.  [Studies in the Psychology of Sex, Volume 1 The Evolution of Modesty; The Phenomena of Sexual Periodicity; Auto-Erotism] Reference