1. concrete pavement is sometimes referred to as cement;
"they stood on the gray cement beside the pool"
2. a building material that is a powder made of a mixture of calcined limestone and clay; used with water and sand or gravel to make concrete and mortar
3. something that hardens to act as adhesive material
4. any of various materials used by dentists to fill cavities in teeth
5. a specialized bony substance covering the root of a tooth