DICT.TW Dictionary Taiwan
18.118.121.23
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

4 definitions found

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

 fluo·res·ce·in /-ˈrɛsiən/
 螢光素

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

 flu·o·res·ce·in /-ˈɛsɪən/ 名詞
 二羥基熒烷,熒光素,氫化熒光素

From: Webster's Revised Unabridged Dictionary (1913)

 fluo·res·ce·in, fluo·res·ce·ine, flu·o·res·ce·ïn n. Chem. A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin.
 Syn: -- fluorescein, fluorescent dye, resorcinolphthalein.
 ◄ ►

From: WordNet (r) 2.0

 fluorescein
      n : a yellow dye that is visible even when highly diluted; used
          as an absorption indicator when silver nitrate solution
          is added to sodium chloride in order to precipitate
          silver chloride (turns pink when no chloride ions are
          left in solution and negative fluorescein ions are then
          absorbed) [syn: fluoresceine, fluorescent dye, resorcinolphthalein]