PHENOLPHTHALEIN


Meaning of PHENOLPHTHALEIN in English

[ ˌfi:nɒl'(f)θali:n , -'(f)θeɪl- ]

■ noun Chemistry a colourless crystalline solid (pink in alkaline solution) used as an acid–base indicator. [C 20 H 14 O 4 .]

Origin

C19: from phenol + -phthal- (from naphthalene ) + -in 1 .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.