The act (by a man) of inserting his penis into the vagina of a woman

Usage examples of penetration.

But, to say the truth, there is a more simple and plain method of accounting for that prodigious superiority of penetration which we must observe in some men over the rest of the human species, and one which will serve not only in the case of lovers, but of all others.

The arrowheads were barbless mild steel, honed to a needlepoint for penetration, and one of the guerrillas had stood off thirty paces and sunk one of these arrows twenty inches into the fleshy fibrous trunk of a baobab tree.

Lugging sonic battering rams, the new penetration team--five times the size of the previous squad--rushed up to the barricaded doors on the quiet side of the sprawling facility, choosing to enter through wings less likely to be occupied by the murderous compies.

Stanford and Willis Harmon, the induced trauma of long range penetration of which our education is a part, has been going on for 45 years, yet how many are aware of the insidious pressures being applied to our society and the constant exposure to brainwashing that goes on every day?

Massie cites an instance of gunshot wound of the right hypochondrium, with penetration and protrusion of the liver.

As the last syllables of the mantra faded away, traveling with shrieking penetration into the depths of the jungle, Lakshman heard the ground-shaking thunder of the next wave approaching.

I had chastised Lucy in every manner, playfully, pedantically, paternally, militarily, passionately, dispassionately, and in every tempo, allegro, largo, andante, di minuetto, with every paddle, strap, pliant rod, and whip in every room in my house, as she presented her fanny, bared or lightly covered, while lying across my knees, kneeling on beds, couches, chairs, footstools, or as she crawled upstairs, for one smack of my belt on each step, or bending over tables, desks, sinks, tubs, toilets, kitchen work surfaces, washing machine and dryer, followed by all the permutations of sensual penetration.

She felt his understanding to envelop her little spirit with a soft and clear penetration, and that nothing she did or said could ever be misconceived more.

Sweat could not evaporate in water, and there might possibly be some penetration of the pure fluid through the pervious membrane of his skin.

Nay, in the hope of vindicating his own penetration, he took an opportunity of questioning Ferdinand in private concerning the circumstances of the translation, and our hero, perceiving his drift, gave him such artful and ambiguous answers, as persuaded him that the young Count had acted the part of a plagiary, and that the other had been restrained from doing himself justice, by the consideration of his own dependence.

There were two remarkable instances of recovery after penetration of the pleural cavity by arrows.

They seated permanently onto the pungi pipes with spongy noises of penetration, to wriggle and gush bloodpus and reach impotently toward Wormboy.

Edgar Quinet retained all his lofty judgment, Noel Parfait all his mental vivacity, Yvan all his vigorous and intelligent penetration, Labrousse all his animation.

But, now, in the past months had come a rush of successes, with the Battle of the Ruhr, with news of the catastrophe at Hamburg just reaching England and, in the past week, the Americans, having carried out their first deep penetration raids of Germany when, on 17 August, following their directives faithfully, they had attacked the ball-bearing factories at Schweinfurt and the Messerschmitt factory at Regensburg.

In irrigation, especially in nonporous soils, the surfactant aids soil penetration.