ˈrēə̇n noun
( -s )
Etymology: International Scientific Vocabulary rhe- (from New Latin Rheum ) + -in
: a yellow crystalline acid C 15 H 8 O 6 occurring especially in rhubarb and senna leaves; 4,5-dihydroxy-2-anthraquinone-carboxylic acid
ˈrēə̇n noun
( -s )
Etymology: International Scientific Vocabulary rhe- (from New Latin Rheum ) + -in
: a yellow crystalline acid C 15 H 8 O 6 occurring especially in rhubarb and senna leaves; 4,5-dihydroxy-2-anthraquinone-carboxylic acid
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012