- xanthéne
- (gzan-tè-n') s. f.Terme de minéralogie. Espèce de pierre précieuse.
Dictionnaire de la Langue Française d'Émile Littré. d'Émile Littré. 1872-1877.
xanthéne
Regardez d'autres dictionnaires:
Xanthène — Général Nom IUPAC 9H xanthène No CAS … Wikipédia en Français
xanthène — [gzɑ̃tɛn] n. m. ÉTYM. 1906; « pierre précieuse », 1846; de xanth , et ène. ❖ ♦ Chim. Composé hétérocyclique C13H10O, obtenu par désamination de la guanine. 0 Les sensibilisateurs chromatiques sont des substances colorantes, soit des dérivés du… … Encyclopédie Universelle
xanthene — [zan′thēn΄] n. [ XANTH(O) + ENE] a ring system, C6H4CH2OC6H4, occurring as yellowish, crystalline leaflets in the molecules of many dyes … English World dictionary
Xanthene — chembox new ImageFile = Xanthen.svg ImageSize = 200px IUPACName = 9H Xanthene OtherNames = Dibenzo [ a , e ] pyran 10 H 9 oxaanthracene Section1 = Chembox Identifiers Abbreviations = CASNo = 92 83 1 EINECS = 202 194 4 PubChem = SMILES =… … Wikipedia
xanthene — ˈzanˌthēn noun ( s) Etymology: xanth + ene 1. a. : a white crystalline heterocyclic compound C13H10O obtained by reduction of xanthone called also 9H xanthene; compare structural formula … Useful english dictionary
xanthene — 1. The basic structure of many natural products, drugs, dyes ( e.g., fluorescein, pyronin, eosins), indicators, pesticides, antibiotics, etc. 2. A class of molecules based upon x. (1). * * * xan·thene zan .thēn n 1) a white crystalline… … Medical dictionary
xanthene — noun Date: 1898 1. a white crystalline heterocyclic compound C13H10O; also an isomer of this that is the parent of the colored forms of the xanthene dyes 2. any of various derivatives of xanthene … New Collegiate Dictionary
xanthene — ksantenas statusas T sritis chemija apibrėžtis Heterociklinis junginys. formulė C₆H₄:(O)(CH₂):C₆H₄ atitikmenys: angl. xanthene rus. ксантен … Chemijos terminų aiškinamasis žodynas
xanthene dye — n any of various brilliant fluorescent yellow to pink to bluish red dyes that are characterized by the presence of the xanthene nucleus … Medical dictionary
xanthene dye — n. any of various dyes that contain the xanthene ring structure in their molecules … English World dictionary
xanthene dye — noun : any of a group of brilliant fluorescent yellow to pink to bluish red dyes characterized by the presence of the xanthene nucleus, known sometimes in colorless as well as colored forms, and used chiefly in dyeing textile fibers, in coloring… … Useful english dictionary
