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酚酞
fēn​tài

phenolphthalein

Definitions Defs Origin Strokes Stroke Words Sentences Sents
酚酞 fēn​tài
phenolphthalein
Organic compound appearing as white or slightly yellow crystals; used as a dye and as a chemical indicator that turns red in alkaline solutions and remains colorless in acidic or neutral solutions.

Frequency

Movie subtitles
0.270 per million appears in 0% of films
Written text
0.113 per million

Sources

Frequency data
SUBTLEX-CHBCC Corpus (BLCU)