The place where telephone companies terminate customer lines and locate switching equipment to interconnect those lines with other networks.
- Central office exchange service
communications (Centrex) A PBX service providing switching at the central office instead of at the company premises. Typically, the telephone company owns and manages all the communications equipment necessary to implement the PBX and then sells various services to the company. (1999-10-27)
- Central ossifying fibroma
central ossifying fibroma n. A painless, slow-growing, sharply circumscribed benign fibro-osseous tumor of the jaws that is derived from cells of the periodontal ligament.
- Central osteitis
central osteitis n. See osteomyelitis. See endosteitis.
- Central paralysis
central paralysis n. Paralysis due to a lesion in the brain or spinal cord.