RETROGRADATION
Meaning of RETROGRADATION in English
transcription, транскрипция: [ ˌre-trō-grā-ˈdā-shən, -grə- ]
noun
Date: circa 1545
: the action or process of retrograding
Merriam-Webster's Collegiate English vocabulary.
Энциклопедический словарь английского языка Merriam Webster.
2003