Definition of "teletypewriter" []

• An electromechanical typewriter that either transmits or receives messages coded in electrical signals carried by telegraph or telephone wires. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The change doesn't affect the toll-free number for deaf or hard-of-hearing customers who connect with the teletypewriter device."
• "One of the two modems used for the first call on a TTY - or teletypewriter - more than 40 years ago is featured on the first floor of the library as part of its Deaf Archives collection."
• "They may need to know the location of the TTY (teletypewriter for those with hearing or speech impairments)."