Real Dictionary

cement
uncountable noun: Cement is a grey powder which is mixed with sand and water in order to make concrete.

cement in American English
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
intransitive verb: to become cemented; join together or unite; cohere
noun: any of various calcined mixtures of clay and limestone, usually mixed with water and sand, gravel, etc., to form concrete, that are used as a building material
transitive verb: to unite by or as if by cement

cement in British English
noun: a fine grey powder made of a mixture of calcined limestone and clay, used with water and sand to make mortar, or with water, sand, and aggregate, to make concrete

cement in Mechanical Engineering
noun: Cement is a powder consisting of mixture of minerals that becomes hard when water is added. It is often mixed with sand and small stones to make concrete.

cement in the Oil and Gas Industry 1
noun: Cement is the binding material in sedimentary rocks.

cement in the Oil and Gas Industry 2
noun: Cement is a gray powder that, mixed to form a slurry, seals the space between the casing and the borehole wall.

cement in the Oil and Gas Industry 3
verb: To cement something is to fix or stick it using a type of cement.