VALYL Meaning of VALYL in English ˈvalə̇l, ˈvālə̇l noun( -s )Etymology: International Scientific Vocabulary val ine + -yl : the univalent acy radical (CH 3 ) 2 CHCH(CNH 2 )CO− of valine Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012