noun

1. 1. 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
   2. concrete: a loose usage
2. any soft substance that fastens things together firmly when it hardens, as glue
3. anything that joins together or unites; bond
4. cementum
5. the fine-grained material that binds together the larger constituents in many kinds of sedimentary or clastic rock
6. Dentistry a cementlike substance used to fill cavities, set crowns, etc.
7. Metallurgy a dust or powder, as of charcoal or sand, or a finely divided metal, used in cementation

Etymology: ME & OFr ciment < L caementum, rough stone, chippings < *caedimentum < caedere, to cut down: see -cide

transitive verb

1. to join or unite with or as with cement
2. to cover with cement

intransitive verb