(Latin: caementa, "stone chips" from caedere, "to cut down, chop, beat, hew, fell, slay")
2. In geology, any chemically precipitated material or ore mineral that minds together loose particles of sediment into coherent rock.
3. Any substance; such as, a preparation of glue, red lead, or lime, the hardening of which causes objects between which it is applied to adhere firmly.
4. Any compound or substance applied in the form of a mortar and used for producing a hard and stony, smooth, water proof surface, coating, filling, or lining; as, for a floor or a cistern.
Ordinary cement is made by heating limestone and clay, or a natural rock containing both materials in the right proportions. When it hardens under water, it is called hydraulic cement5. That which serves to bind people or special interests together.
6. Auriferous gravel held together by a clay or silicic bond; also, the binding substance.
7. Etymology: from Old French ciment, which came from Latin cæmenta, "stone chips used for making mortar", from cædere, "to cut down, chop, beat, hew, fell, slay".
The evolution of the meaning, "small broken stones" to "powdered stones used in construction", took place before the word became a part of English.
2. The application of cement or a similar substance to something, or the result of this.
3. The modification of a solid, especially a metal, by heating it with one or more other substances that will diffuse into the surface; such as, the production of steel by heating it with charcoal.
4. 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.
5. In geology, sedimentary rock formation or the process in which percolating ground water deposits a cementing material to form a sedimentary rock.
6. The injecting of cement into holes or fissures in rocks to make them watertight or strong.
7. The attachment of anything with cement; such as, of restorative material to a natural tooth, or of bands to teeth.
2. An iron carbide, or a constituent of steel and cast iron, sometimes with part of its iron replaced by another metal; such as, manganese.
3. A hard and brittle intermetallic compound that has negligible solubility limits.
2. A bone-like substance that covers the root of a mammalian tooth and helps to fix it in the socket (alveolus) of the jaw bone.
It is very compact and hard, having a higher mineral content than bone.
There are two main types, cellular and acellular. In some animals, cementum also forms an external layer on the crown.
Also called, crusta petrosa dentis, crusta radicis, bony substance of tooth, substantia ossea dentis, and cement.