cement Alternative forms caement (archaic) cæment (archaic)

Hyphenation: cement Noun cement (countable and uncountable, plural cements)

1.(countable, uncountable) A powdered substance produced by firing (calcining) calcium carbonate (limestone) and clay that develops strong cohesive properties when mixed with water. The main ingredient of concrete. [quotations ▼]

2.(uncountable) The paste-like substance resulting from mixing such a powder with water, or the rock-like substance (concrete) that forms when it dries.

3.(uncountable) Any material with strong adhesive and cohesive properties such as binding agents, glues, grout.

4.(figuratively) A bond of union; that which unites firmly, as persons in friendship or in society. the cement of our love

5.(anatomy) The layer of bone investing the root and neck of a tooth; cementum.