Dictionary Meaning and Definition on 'Cement'
- concrete pavement is sometimes referred to as cement; "they stood on the gray cement beside the pool"
- 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
- something that hardens to act as adhesive material
- any of various materials used by dentists to fill cavities in teeth
- a specialized bony substance covering the root of a tooth [syn: cementum] v
- make fast as if with cement; "We cemented our friendship"
- cover or coat with cement
- bind or join with or as if with cement
- Cement \Ce*ment"\ (s[e^]*m[e^]nt" or s[e^]m"[e^]nt), n. [OF.
cement, ciment, F. ciment, fr. L. caementum a rough, unhewn
stone, pieces or chips of marble, from which mortar was made,
contr. fr. caedimentum, fr. caedere to cut, prob. akin to
scindere to cleave, and to E. shed, v. t.]
- Any substance used for making bodies adhere to each other, as mortar, glue, etc.
- A kind of calcined limestone, or a calcined mixture of clay and lime, for making mortar which will harden under water.
- The powder used in cementation. See Cementation, n., 2.
- Bond of union; that which unites firmly, as persons in friendship, or men in society. ``The cement of our love.''
- (Anat.) The layer of bone investing the root and neck of a tooth; -- called also cementum. Hydraulic cement. See under Hydraulic.
- Cement \Ce*ment"\, v. t. [imp. & p. p. Cemented; p. pr. & vb.
n. Cementing.] [Cf. F. cimenter. See Cement, n.]
- To unite or cause to adhere by means of a cement. --Bp. Burnet.
- To unite firmly or closely. --Shak.
- To overlay or coat with cement; as, to cement a cellar bottom.
- Cement \Ce*ment"\, v. i.
To become cemented or firmly united; to cohere. --S. Sharp.
Wikipedia Meaning and Definition on 'Cement'
In the most general sense of the word, a cement is a binder, a substance that sets and hardens independently, and can bind other materials together. The word "cement" traces to the Romans, who used the term opus caementicium to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick additives that were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, cäment and cement.
Cement used in construction is characterized as hydraulic or non-hydraulic. Hydraulic cements (e.g., Portland cement) harden because of hydration, chemical reactions that occur independently of the mixture's water content; they can harden even underwater or when constantly exposed to wet weather. The chemical reaction that results when the anhydrous cement powder is mixed with water produces hydrates that are not water-soluble. Non-hydraulic cements (e.g., lime and gypsum plaster) must be kept dry in order to retain their strength.[See more about Cement at Dictionary 3.0 Encyclopedia]
Words and phrases related to 'Cement'
'Cement' in famous quotation sentence
* To cement a new friendship, especially between foreigners or persons of a different social world, a spark with which both were secretly charged must fly from person to person, and cut across the accidents of place and time. - Nigerian Proverb
* To cement a new friendship, especially between foreigners or persons of a different social world, a spark with which both were secretly charged must fly from person to person, and cut across the accidents of place and time. - Cornelia Otis Skinner
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Cement Sample Sentences in News
- Cement firms withdraw price hikes
Cement prices have been reduced by an average of P3 per 40-kilogram bag cutting in the bud an industry-wide planned price increase appeared could not be supported due to stiff market competition and after the Department of Trade and Industry directed the issuance of show cause order against cement firms and vendors on such unwarranted price hikes. DTI Undersecre Read more on this news related to 'Cement'
- Bamburi Cement's year profit down 23 pct
Kenya's Bamburi Cement reported a 23 percent drop in its annual pretax profit to 5.5 billion shillings on Thursday, due to poor demand in the first half of last year. Controlled by French firm Lafarge SA, Bamburi is the biggest cement maker in Kenya, where high demand has been fuelled by a construction boom in recent years. Turnover fell last year to 33.9 bill Read more on this news related to 'Cement'
- Research and Markets: Australia Orthopedic Bone Cement and Casting Materials Market Outlook to 2020
Research and Markets has announced the addition of the "Australia Orthopedic Bone Cement and Casting Materials Market Read more on this news related to 'Cement'