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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.
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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 ?
According to the company, the gamma Knife is the leading stereotactic radiosurgery (SRS) platform, offering unparalleled accuracy in both the localization and radiation dose delivered to targeted brain tissue.
Gamma Knife and X-Knife Stereotactic Radio surgery, he stated, is highly precise and focused delivery of reduction to biological targets on a single session.
The global Gamma Knife market is segmented on the basis of indication, anatomy or organs treated and geography.
PAH radiation oncologist Dr Matthew Foote said the Gamma Knife worked by firing 192 gamma beams with precise accuracy to the treatment area inside the brain and was designed to only hit the target without damaging healthy tissue.
In the last decade or so, Gamma Knife technology has revolutionized neurosurgery, providing an effective and noninvasive treatment option for patients suffering from numerous brain-related problems.
By focusing these gamma rays, the Gamma Knife delivers a high dose of ionizing radiation to a target while minimizing the dosage to surrounding tissue (Kondziolka, Lunsford, Maitz, & Flickinger, 1998; Lee, Isaacson, Schiff, Sisti, & Germano, 2000).
Convincing governments, doctors and patients in countries like New Zealand and Australia, as well as in Canada, to utilize Hawaii's advanced Gamma Knife technology and services for specialized treatments has become a major marketing and communications goal of the local center.
The Gamma Knife beams gamma radiation to dissolve tumors and lesions and other disorders in inaccessible areas of the brain.
Swedish medical technology company Elekta's (EKTA-B) Leksell Gamma Knife Perfexion has been used to treat a patient in Switzerland for the first time, the company said.
For more insights on the Gamma Knife Market, you can request a sample report with TOC at http://www.
NORDIC BUSINESS REPORT-10 May 2007-Elekta AB receives gamma knife order in Portugal(C)1994-2007 M2 COMMUNICATIONS LTD http://www.