- noun material which binds things together, such as that which binds minerals together to form sedimentary rocks
- noun a powder which, if mixed with water and then dried, sets hard like stone
- Any chemical binder that makes bodies adhere to it or to each other, such as glue, paste, or Portland cement.
- noun a fine grey powder of limestone and clay, mixed with water and sand to make mortar, or with water, sand and aggregate to make concrete
- noun a building material that sets hard to form concrete, made by mixing cement with water, sand and aggregate
- noun a glue or similar bonding substance
Origin & History of “cement”
Latin caementa meant ‘stone chips used for making mortar’; etymologically, the notion behind it was of ‘hewing for a quarry’, for it was originally *caedmenta, a derivative of caedere ‘cut’ (from which English gets concise and decide). In due course the signification of the Latin word passed from ‘small broken stones’ to ‘powdered stone (used for mortar)’, and it was in this sense that it passed via Old French ciment into English.