(redirected from Gamma Knife)
Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.


see cutlerycutlery,
various types of implements for cutting, preparing, and eating food. In addition to different kinds of knives and the steels to sharpen them, the term usually encompasses forks and spoons.
..... Click the link for more information.



a cutting instrument in the shape of a plate with a sharp edge (blade). The oldest knives (thin flint plates with a cutting edge) became known in the Upper Paleolithic period.

With the introduction of metalworking, flint knives were gradually replaced by copper and bronze knives; however, they did not disappear entirely until iron knives came into widespread use with the beginning of the Iron Age. The use of iron knives fostered the development of several trades, particularly those associated with the working of wood and bone. Knives used in viniculture were also known in antiquity.

The technology of making knives from iron had attained a high level of development by the end of the first millennium A.D. Knives with laminated, self-honing blades appeared at that time (for example, in Rus’). The inner part of such blades was made of high-carbon steel, and the outer part was made of iron. The softer outer metal wore off with use; the harder steel plate protruded through the blade, and the knife remained sharp. By the early 12th century production of knives became widespread; the complex technology of making laminated blades was replaced by the simpler process of making knives with a welded steel blade. Concurrently, an increasing number of special types of knives were being produced. Later, with the introduction of industrial production processes, the term “knife” also came to mean a cutting member of tools and machines.

What does it mean when you dream about a knife?

A knife can signify the need to cut to the quick, to lay open one’s innermost fears. It may indicate being “stabbed in the back” or being the victim or perpetrator of an act of violence. A knife in a dream is also often seen as a male sexual symbol, and is generally associated with aggression.


(design engineering)
A sharp-edged blade for cutting.


This tool does not have positive connotations. It may reflect the unrest and difficulty that you are experiencing. If you are self-mutilating, consider your actions and/or addictions. Take a hint from your unconscious and modify or discontinue your harmful thoughts or actions.
References in periodicals archive ?
Leksell Gamma Knife Perfexion will allow us to care for patients with even more refined methods and more efficiency.
All of these issues were solved with the Leksell Gamma Knife Perfexion.
Gamma Knife Icon is the sixth generation of the company's Leksell Gamma Knife system, a technology that has been in use worldwide and continually evolving since the 1980s.
The NKI-AVL system is the latest of several orders since Gamma Knife Icon was CE marked in June and received 510(k) clearance in August this year.
By indication type, the global Gamma Knife market is segmented into brain metastasis, cancer arteriovenous malformation (AVM), trigeminal neuralgia and others.
Gamma Knife surgery presents fewer risks or complications than traditional open skull surgery.
If candidacy for Gamma Knife radiosurgery is determined, the nurse contacts the patient for a pretreatment visit.
To offset the cost--a Gamma Knife costs about US$3.
government and healthcare leaders, Gamma Knife radiosurgery experts and representatives of the National Hospital for Neurology and Neurosurgery (NHNN) gathered on April 23 to observe the official opening of The Gamma Knife Centre at Queen Square Radiosurgery Centre (QSRC) by the Rt Hon John Bercow, Speaker of the House of Commons.
The machine is expected to go online sometime in late October at the Eugene hospital's new Gamma Knife Center.
The Gamma Knife will be the focal point of the Radiosurgical Center of Lima, to be located at the Clinica San Felipe in the Jesus Maria district of Lima.
Once the embolization operation is complete, the gamma knife procedure will be performed.