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phthal·ein (thalґēn) any of a series of coloring matters formed by the condensation of phthalic anhydride with the phenols; some have a cathartic action. See phenolphthalein.Medical dictionary. 2011.
Phthalein — Phthal e*in, n. [See {Phthalic}.] (Chem.) One of a series of artificial organic dyes made as condensation products of the phenols with phthalic acid, and well represented by phenol phthale[ i]n. Their alkaline solutions are fluorescent. [1913… … The Collaborative International Dictionary of English
phthalein — [thal′ēn΄, thal′ē in; fthal′ēn] n. [< PHTHALIC ACID + IN1] any of a group of synthetic dyes manufactured from phenols and phthalic anhydride … English World dictionary
phthalein — iodo·phthalein; phe·nol·phthalein; phthalein; sul·fone·phthalein; sul·fo·bro·mo·phthalein; sul·fon·phthalein; … English syllables
phthalein — ˈthalēə̇n, āl , ˌlēn noun also phthalein dye ( s) Etymology: International Scientific Vocabulary phthal + ein : any of a group of xanthene dyes (as phenolphthalein, fluorescein, rhodamine) that are intensely colored in alkaline solution and are… … Useful english dictionary
phthalein dye — noun see phthalein … Useful english dictionary
phthalein — /thal een, ee in, fthal /, n. Chem. any of a group of compounds formed by treating phthalic anhydride with phenols, from which certain important dyes are derived. [1900 05; (NA)PHTHALE(NE) + IN2] * * * … Universalium
phthalein — noun any of a range of lactones formed by the reaction of phenols with phthalic anhydride … Wiktionary
Phthalein — Phtha|le|in 〈n. 11; unz.; Chem.〉 aus Phthalsäureanhydrid u. Phenolen hergestellter Triphenylmethanfarbstoff, z. B. Phenolphthalein u. Fluoreszein, Xanthenfarbstoff [→ Naphthalin] * * * Phtha|le|in [↑ Phthal ], das; s, e: Gruppenbez. für 3,3… … Universal-Lexikon
Phthalein — Phtha|le|in 〈n.; Gen.: s; Pl.: unz.; Chemie〉 aus Phthalsäureanhydrid u. Phenolen hergestellter Farbstoff, z. B. Phenolphthalein u. Fluoreszein [Etym.: Kunstwort <Naphthalin] … Lexikalische Deutsches Wörterbuch
Phthalein — Phtha|le|in das; s, e <zu ↑...in> synthetischer Farbstoff (z. B. Eosin) … Das große Fremdwörterbuch
