from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The act, process, or result of cementing.
- n. A metallurgical coating process in which iron or steel is immersed in a powder of another metal, such as zinc, chromium, or aluminum, and heated to a temperature below the melting point of either.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The act of cementing
- n. The impregnation of the surface of a metal with another material; the manufacture of steel by carburizing iron
- n. The precipitation of mineral matter in the pores of a sediment
- n. The use of a cement join the parts of a broken bone to aid in the healing process
- n. The use of a cement or adhesive to fasten orthodontics or to restore chipped or broken teeth
from the GNU version of the Collaborative International Dictionary of English
- n. The act or process of cementing.
- n. A process which consists in surrounding a solid body with the powder of other substances, and heating the whole to a degree not sufficient to cause fusion, the physical properties of the body being changed by chemical combination with powder; thus iron becomes steel by cementation with charcoal, and green glass becomes porcelain by cementation with sand.
from The Century Dictionary and Cyclopedia
- n. The act of cementing; the act of uniting by an adhesive substance.
- n. A metallurgical process in which two substances are heated in contact for the purpose of effecting some important chemical change in one of them.
- n. In petrography, the cementing of fragments or grains of a porous or incoherent rock by infiltration and deposition of mineral matter from solution. The commonest cementing-materials are carbonates, silica (usually as quartz), and silicates.
- n. The solid fixation to extraneous objects by the substance of the shell or test, as in the entire class of corals and sporadically in the Brachiopoda, Pelecypoda, Vermes, etc.
- n. In botany, the growing together of the hyphæ of fungi. Same as concrescence, 4.
- n. A process in which two solid substances in contact, upon being heated, pass into and penetrate one another without melting.
Sorry, no etymologies found.
The product obtained by this method is known as cementation steel.
Al Jaber, and the U.S. Department of Energy recently announced a collaboration to test the performance of specially coated solar photovoltaic modules designed to avoid the moisture and cementation problems currently faced by PV module producers worldwide.
The cementation process proceeds considerably slower than for Portland Cement, but in time, cement mortar strengths may be attained.
The process of compaction and cementation is known as lithification.
The South African company - which has been in the shaft sinking business for more than 47 years - will sink the shafts and sealing water by means of cementation and grouting as opposed to the more traditional Russian ground-freezing method.
The first, obtained by the decarburation of the metal, gives natural or puddled steel; the second, produced by the carburation of the iron, gives steel of cementation.
The specimen No. 17 is only of scientific interest, as it gives off an acid vapour when heated; and this substance may have been used by the ancients in the separation of silver from gold by the process termed “cementation.”
Cement and lime: cement has a cementation effect whereas lime has a bonding effect.
Consolidated rocks are porous materials held firmly together by compaction and cementation and are represented by sandstones, limestones, and conglomerates.
This yields a resin which acts by cementation and as a water repellent.