Retrogradation



noun
1.
(act of retro gradation, state of being retrograded; A decline, backward movement, deterioration) ការបញ្ចុះសក្ដិ, ការដកថយ, ការថយ, ថយក្រោយ, ដំណើរត្រឡប់ទៅកន្លែងដើមវិញ
ENGLISH MEANING
noun
1.
The act of retrograding, or moving backward.
2.
The state of being retrograde; decline.