Cement being poured at a construction site.
- The definition of cement is anything that binds, particularly a substance made of burned lime, clay, sand and water to make mortar or sand, water and gravel to make concrete.
An example of cement is the material used for a foundation of a house.
- Cement means to join together or cover with a binding agent, particularly a substance made of burned lime, clay, sand and water.
An example of cement is to fix a hole in the sidewalk.
- a powdered substance made of burned lime and clay, mixed with water and sand to make mortar or with water, sand, and gravel to make concrete: the mixture hardens when it dries
- concrete: a loose usage
- any soft substance that fastens things together firmly when it hardens, as glue
- anything that joins together or unites; bond
- the fine-grained material that binds together the larger constituents in many kinds of sedimentary or clastic rock
- Dentistry a cementlike substance used to fill cavities, set crowns, etc.
- Metallurgy a dust or powder, as of charcoal or sand, or a finely divided metal, used in cementation
Origin of cementMiddle English and Old French ciment from Classical Latin caementum, rough stone, chippings from an unverified form caedimentum from caedere, to cut down: see -cide
- to join or unite with or as with cement
- to cover with cement
- to establish firmly or make stronger: to cement a friendship
- a. A building material made by grinding calcined limestone and clay to a fine powder, which can be mixed with water and poured to set as a solid mass or used as an ingredient in making mortar or concrete.b. Portland cement.c. Concrete.
- A substance that hardens to act as an adhesive; glue.
- Something that serves to bind or unite: “Custom was in early days the cement of society” ( Walter Bagehot )
- Geology A chemically precipitated substance that binds particles of clastic rocks.
- Dentistry A substance used for filling cavities or anchoring crowns, inlays, or other restorations.
- Variant of cementum
verbce·ment·ed, ce·ment·ing, ce·ments
- To bind with or as if with cement.
- To cover or coat with cement.
Origin of cementMiddle English from Old French ciment from Latin caementum rough-cut stone, rubble used in making concrete from caedere to cut ; see kaə-id- in Indo-European roots.
(countable and uncountable, plural cements)
- (uncountable) A powdered substance that develops strong adhesive properties when mixed with water.
- (uncountable) The paste-like substance resulting from mixing such a powder with water.
- (uncountable) Any material with strong adhesive properties.
- (figuratively) Bond of union; that which unites firmly, as persons in friendship or in society.
- the cement of our love
- (anatomy) The layer of bone investing the root and neck of a tooth; cementum.
(third-person singular simple present cements, present participle cementing, simple past and past participle cemented)
From Old French ciment, from Latin caementum (“quarry stone; stone chips for making mortar”), from caedo (“I cut, hew”).