Other forms: cemented; cementing; cements

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."

Definitions of cement
  1. noun
    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
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    Portland cement, hydraulic cement
    a cement that hardens under water; made by heating limestone and clay in a kiln and pulverizing the result
    type of:
    building material
    material used for constructing buildings
  2. noun
    concrete pavement is sometimes referred to as cement
    “they stood on the grey cement beside the pool”
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    type of:
    a strong hard building material composed of sand and gravel and cement and water
  3. verb
    cover or coat with cement
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    type of:
    coat, surface
    put a coat on; cover the surface of; furnish with a surface
  4. noun
    something that hardens to act as adhesive material
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    glue, gum, mucilage
    cement consisting of a sticky substance that is used as an adhesive
    a dough-like mixture of whiting and boiled linseed oil; used especially to patch woodwork or secure panes of glass
    iron putty
    a cement resembling putty; made by mixing ferric oxide and boiled linseed oil; is acid resistant
    red-lead putty
    a cement resembling putty; made by mixing white and red lead in boiled linseed oil; used as luting on pipe fittings
    a pasty cement used as an adhesive or filler
    animal glue
    a protein gelatin obtained by boiling e.g. skins and hoofs of cattle and horses
    casein glue
    made from casein; used for e.g. plywood and cabinetwork
    fish glue
    gelatinous substance obtained by boiling skins fins and bones of fish
    marine glue
    glue that is not water soluble
    type of:
    adhesive, adhesive agent, adhesive material
    a substance that unites or bonds surfaces together
  5. verb
    bind or join with or as if with cement
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    type of:
    fasten, fix, secure
    cause to be firmly attached
  6. verb
    make fast as if with cement
    “We cemented our friendship”
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    type of:
    make fast; tie or secure, with or as if with a rope
  7. noun
    a specialized bony substance covering the root of a tooth
    synonyms: cementum
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    type of:
    solid body substance
    the solid parts of the body
  8. noun
    any of various materials used by dentists to fill cavities in teeth
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    type of:
    fill, filling
    any material that fills a space or container




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