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To pierce; to pass into the deeper tissues or into a cavity.
Farlex Partner Medical Dictionary © Farlex 2012


verb To enter by force; to force one’s way into a place or space; to infiltrate.

verb To enter into the body—e.g., by a sharp object or projectile.

verb To enter a natural orifice (e.g., the vagina, anus), as by a penis or sexual toy.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


(pĕn′ĕ-trāt) [L. penetrare]
To enter or force into the interior; pierce.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Match bullets for home defense and hunting are a better choice than the steel penetrator rounds, but they offer poor performance.
The Cloud Penetrator provides full Online Web Vulnerability Scanning and SQL Injection Cross Site Scripting to prevent hackers entering web servers and stealing data.
The exposed, heavier, and sharper penetrator, along with a higher velocity, allows Soldiers to penetrate tougher battlefield barriers than is possible with the current M855.
In this sense an electromagnetic loading system is used, the tested material 11 being stressed by a penetrator 10 moved from the mobile core 2 of an electric coil 1.
The satellite orbiter would then act as a telecommunications station between the surface network and the Earth, relaying information to the Earth during the penetrators' one year life on the strength and frequency of moonquakes and the thickness of the crust and core.
The probes, called penetrators, travelled at 700 mph along 300m of the 1,500m test track before hitting a sand target built to replicate the surface of the moon.
The second is that the weapon was a bunker-busting conventional uranium penetrator weapon employing enriched uranium rather than depleted uranium." A photograph of the explosion of the first bomb shows large clouds of black smoke that might result from burning uranium.Enriched uranium is produced from natural uranium ore and is used as fuel for nuclear reactors.
A MALE lapdancer called The Penetrator has been jailed for two-and-a-half years after being caught smuggling drugs in an airport strip search.
For the second year in a row, US congressional funding for the Robust Nuclear Earth Penetrator (RNEP) program has been cut.
It's almost certain that if the Bush administration had pressed stubbornly ahead with plans to develop the Robust Nuclear Earth Penetrator and other new tactical nuclear weapons, the clock would have moved closer to midnight.
The bunker buster, or Robust Nuclear Earth Penetrator (RNEP)--and other new weapons like 5-kiloton, "usable" mini-nukes--keep showing up on Pentagon budget proposals like unappealing chef's specials.
They are available for the company's Smooth Penetrator (EMT), as well as the Threaded Penetrator (rigid) systems, and come in 1", 2" and 4" sizes.