[ nok-tuh-graf, -grahf ]
/ ˈnɒk təˌgræf, -ˌgrɑf /
a frame used to aid the blind in writing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for noctograph
It was a contrivance called "the noctograph," meant for the use of the blind.William Hickling Prescott|Harry Thurston Peck