rootâ² canal` ther`apy. n. 1. the branch of endodontics that treats disease of the dental pulp. 2. a treatment for such disease in which the pulp is removed and replaced by filling material.
A textphone is a device that enables phone calls to be made using text. Textphone software can be used on a computer to enable it to be used as a textphone.
textphone-Computer Definition. In Europe, a printing telegraph service widely used by those with hearing or speech impairments. Also generically known as TTY (TeleTYpewriter) and TDD (Telecommunications Device for the Deaf) in the United States, and minicom in the United Kingdom. See also telegraph and teletype.