| 单词 | cement |
| 释义 | cement (once / 633 pages) 1nv 2nv 3n 4n Cement is a material that's used to build very strong, hard surfaces and structures. Cement is an ingredient in both mortar, which holds bricks together, and concrete, with which dams and roads and buildings are constructed. Cement begins as a powder made of clay and limestone, and after it's mixed with water and, often, sand, it's used to strengthen and bind things — as the mixture dries, it becomes hard and solid. A version of cement has been around since the third century BCE, in Mesopotamia. The word comes from the Latin root cæmenta, "stone chips for making mortar," from caedere, "to cut or chop." WORD FAMILYcement: cemented, cementing, cements USAGE EXAMPLES“I was actually in charge of the cement block,” Ms. Saxon said, still in awe at her construction skills. New York Times(Jan 02, 2017) I really believe in pedicures because I bounce around on cement floors for hours a week. New York Times(Jan 02, 2017) The victory cemented his reputation as highly dangerous if not a bit erratic. Los Angeles Times(Dec 31, 2016) 1 1n a building material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar Hypo|Hyper Portland cement, hydraulic cement a cement that hardens under water; made by heating limestone and clay in a kiln and pulverizing the result building material material used for constructing buildings 2n concrete pavement is sometimes referred to as cement they stood on the grey cement beside the pool Hyper concrete a strong hard building material composed of sand and gravel and cement and water 3v cover or coat with cement 2Hyper coat, surface put a coat on; cover the surface of; furnish with a surface 1n something that hardens to act as adhesive material Hypo|Hyper glue, gum, mucilage cement consisting of a sticky substance that is used as an adhesive puttya dough-like mixture of whiting and boiled linseed oil; used especially to patch woodwork or secure panes of glass iron puttya cement resembling putty; made by mixing ferric oxide and boiled linseed oil; is acid resistant red-lead puttya cement resembling putty; made by mixing white and red lead in boiled linseed oil; used as luting on pipe fittings mastica pasty cement used as an adhesive or filler animal gluea protein gelatin obtained by boiling e.g. skins and hoofs of cattle and horses casein gluemade from casein; used for e.g. plywood and cabinetwork fish gluegelatinous substance obtained by boiling skins fins and bones of fish marine glueglue that is not water soluble adhesive, adhesive agent, adhesive material a substance that unites or bonds surfaces together 2v bind or join with or as if with cement Hyper fasten, fix, secure cause to be firmly attached 3v make fast as if with cement 3We cemented our friendship Hyper bind make fast; tie or secure, with or as if with a rope n a specialized bony substance covering the root of a tooth 4Syn|Hyper cementum solid body substance the solid parts of the body n any of various materials used by dentists to fill cavities in teeth Hyper fill, filling any material that fills a space or container |
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