core cylinder

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• key trap core/cylinder —   n.    a special core or cylinder designed to capture any key to which it is combinated, once that key is inserted and turned slightly …   Locksmith dictionary

• Core — Core, n. [OF. cor, coer, cuer, F. c[oe]ur, fr. L. cor heart. See {Heart}.] 1. The heart or inner part of a thing, as of a column, wall, rope, of a boil, etc.; especially, the central part of fruit, containing the kernels or seeds; as, the core of …   The Collaborative International Dictionary of English

• Core box — Core Core, n. [OF. cor, coer, cuer, F. c[oe]ur, fr. L. cor heart. See {Heart}.] 1. The heart or inner part of a thing, as of a column, wall, rope, of a boil, etc.; especially, the central part of fruit, containing the kernels or seeds; as, the… …   The Collaborative International Dictionary of English

• Core print — Core Core, n. [OF. cor, coer, cuer, F. c[oe]ur, fr. L. cor heart. See {Heart}.] 1. The heart or inner part of a thing, as of a column, wall, rope, of a boil, etc.; especially, the central part of fruit, containing the kernels or seeds; as, the… …   The Collaborative International Dictionary of English

• Cylinder set — In mathematics, a cylinder set is the natural open set of a product topology. Cylinder sets are particularly useful in providing the base of the natural topology of the product of a countable number of copies of a set. If V is a finite set, then… …   Wikipedia

• Core sample — Rock core samples. The product of a Diamond rig. (The bird is a Pied Butcherbird.) A core sample is a cylindrical section of (usually) a naturally occurring substance. Most core samples are obtained by drilling with special drills into the… …   Wikipedia

• Core drill — Truck mounted core drill A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core. Core drills are used for many applications, either… …   Wikipedia

• Core (optical fiber) — The structure of a typical single mode fiber. 1. Core 8 µm diameter 2. Cladding 125 µm dia. 3. Buffer 250 µm dia. 4. Jacket 400 µm dia …   Wikipedia

• Core plug — A core plug that has been corroded from improper engine maintenance. Core plugs, sometimes wrongly called freeze plugs or frost plugs, are plugs that fill the core holes found on water cooled internal combustion engines. The sand casting cores… …   Wikipedia

• core — I. noun Usage: often attributive Etymology: Middle English Date: 14th century 1. a central and often foundational part usually distinct from the enveloping part by a difference in nature < the core of the city >: as a. the usually inedible… …   New Collegiate Dictionary

• core — /kɔ / (say kaw) noun 1. the central part of a fleshy fruit, containing the seeds. 2. the central, innermost, or most essential part of anything: the core of a curriculum. 3. the section of the body from the hips to the shoulders, especially the… …