transcription, транскрипция: [ ˈle-tər-ˌspā-siŋ ]
noun
Date: 1917
: insertion of space between the letters of a word
LETTERSPACING
Meaning of LETTERSPACING in English
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003