Definition of cement

• n. - Any substance used for making bodies adhere to each other, as mortar, glue, etc.
• n. - A kind of calcined limestone, or a calcined mixture of clay and lime, for making mortar which will harden under water.
• n. - The powder used in cementation. See Cementation, n., 2.
• n. - Bond of union; that which unites firmly, as persons in friendship, or men in society.
• n. - The layer of bone investing the root and neck of a tooth; -- called also cementum.
• n. - To unite or cause to adhere by means of a cement.
• n. - To unite firmly or closely.
• n. - To overlay or coat with cement; as, to cement a cellar bottom.
• v. i. - To become cemented or firmly united; to cohere.