DICT.TW Dictionary Taiwan
3.14.249.124
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 phe·nol·phtha·lein /ˌfinḷˈθæliən, ˈθæˌlin, ˈθe-/
 酚□

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 phe·nol·phtha·lein /ˌfɪnḷˈθælɪən, ˈθælˌɪn, ˈθel-/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Phe·nol·phthal·e·in or Phenol phthalein., n. Chem. A white or yellowish white crystalline substance, C20H14O4, formed by condensation of the anhydride of phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids.  This reaction, being very delicate, is used as a pH indicator.  It is sometimes used as a laxative in veterinary medicine.
 ◄ ►

From: WordNet (r) 2.0

 phenolphthalein
      n : a laxative used in many preparations under various trade
          names; also used as an acid-base indicator in titrations
          involving weak acids and strong bases because it is
          brilliant red at high alkalinity and colorless below pH 8