KEY BLOCK Meaning and
Definition
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Key Block: A key block refers to a foundational element in the design and construction of certain architectural structures, such as vaulted ceilings and arches. It is a central or essential stone or element that provides stability and strength by bearing the weight of the structure. The key block is typically located at the summit of the arch or vault and locks the adjacent stones or elements in place, preventing the structure from collapsing.
In the context of an arch, the key block is usually a wedge-shaped stone that lies at the highest point, wedged tightly between the voussoirs (the individual stones that make up the arch). It serves as the final piece to be installed and is crucial in maintaining structural stability. Without a key block, the arch would lack stability and structurally fail under the pressure of the load it supports.
Similarly, in a vaulted ceiling, the key block is the central stone at the apex of the vault. It acts as the pinnacle of the vault, holding together the converging ribs through compression forces. The key block enhances the structural integrity of the vault by ensuring the equilibrium of forces and preventing the collapse of the ceiling.
The term "key block" can also be used metaphorically to describe a crucial or pivotal element in a system, organization, or process. It represents the essential component that holds everything together or allows for the smooth operation of a particular structure or system.
Common Misspellings for KEY BLOCK
- jey block
- mey block
- ley block
- oey block
- iey block
- kwy block
- ksy block
- kdy block
- kry block
- k4y block
- k3y block
- ket block
- keg block
- keh block
- keu block
- ke7 block
- ke6 block
- key vlock
- key nlock
- key hlock
Etymology of KEY BLOCK
The word "key block" comes from the combination of two separate etymologies.
First, the term "key" originated from Old English "cǣg" or Old Norse "kagi", which both mean "key". It can be traced back to Proto-Germanic "kaigaz" and ultimately to Proto-Indo-European "kaig" or "kaik", meaning "to bend" or "crook". The concept of a key is derived from the bending or curving shape of the metal used in locks or the action of turning a key to unlock something.
Second, the term "block" originated from Middle English "blokke", which meant a large, solid piece of wood or stone used for various purposes. The word has Germanic roots related to Old High German "bloh", meaning "log" or "block of wood".
