| 1. | any of various calcined mixtures of clay and limestone, usually mixed with water and sand, gravel, etc., to form concrete, that are used as a building material. |
| 2. | any of various soft, sticky substances that dry hard or stonelike, used esp. for mending broken objects or for making things adhere. |
| 3. | Petrography. the compact groundmass surrounding and binding together the fragments of clastic rocks. |
| 4. | anything that binds or unites: Time is the cement of friendship. |
| 5. | Dentistry.
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| 6. | to unite by or as if by cement: to cement stones to form a wall; to cement a relationship. |
| 7. | to coat or cover with cement: to cement a floor. |
| 8. | to become cemented; join together or unite; cohere. |

ce·ment (sĭ-měnt') n.
v. tr.
To become cemented. [Middle English, from Old French ciment, from Latin caementum, rough-cut stone, rubble used in making concrete, from caedere, to cut; see kaə-id- in Indo-European roots.] ce·ment'er n. |
cement ce·ment (sĭ-měnt')
n.
A substance used for filling dental cavities or anchoring crowns, inlays, or other restorations.
See cementum.
A substance that hardens to act as an adhesive; glue.