noun Etymology: French, from New Latin fluor Date: 1813 a nonmetallic halogen element that is isolated as a pale yellowish flammable irritating toxic diatomic gas — see element table

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Fluorine — Fluorine, la. fluorum, meaning to flow ), is the chemical element with the symbol F and atomic number 9. Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements. In its elementally isolated (pure)… …   Wikipedia

  • fluorine — [ flyɔrin ] n. f. • 1833; de fluor ♦ Chim. Fluorure de calcium naturel (cf. Spath fluor). On dit aussi FLUORITE . ● fluorite ou fluorine nom féminin Fluorure naturel de calcium, de formule CaF2, qui cristallise le plus souvent en cubes de teinte… …   Encyclopédie Universelle

  • Fluorine — Flu or*ine (fl[=u] [o^]r*[i^]n or fl[=u] [o^]r*[=e]n; 104), n. [NL. fluorina: cf. G. fluorin, F. fluorine. So called from its occurrence in the mineral fluorite.] (Chem.) A non metallic, gaseous element of atomic number 9, strongly acid or… …   The Collaborative International Dictionary of English

  • fluorine — Symbol: F Atomic number: 9 Atomic weight: 18.9984 A poisonous pale yellow gaseous element belonging to group 17 of the periodic table (The halogens). It is the most chemically reactive and electronegative element. It is highly dangerous, causing… …   Elements of periodic system

  • fluorine — 1813, non metallic element, coined by English chemist Sir Humphry Davy (1778 1829) from fluorspar ( calcium fluoride, modern fluorite), the late 18c. name of the mineral where it was first found; see FLUOR (Cf. fluor) + chemical suffix INE (Cf.… …   Etymology dictionary

  • fluorine — ► NOUN ▪ a poisonous, extremely reactive, pale yellow gaseous chemical element. ORIGIN from fluor (see FLUORSPAR(Cf. ↑F)) …   English terms dictionary

  • fluorine — [flôr′ēn΄, floor′ēn] n. [ FLUOR + INE3] a corrosive, toxic, greenish yellow gaseous chemical element, one of the halogens and the most reactive nonmetallic element, forming fluorides with almost all known elements: symbol, F; at. no., 9: see the… …   English World dictionary

  • fluorine — /floor een, in, flawr , flohr /, n. Chem. the most reactive nonmetallic element, a pale yellow, corrosive, toxic gas that occurs combined, esp. in fluorite, cryolite, phosphate rock, and other minerals. Symbol: F; at. wt.: 18.9984; at. no.: 9.… …   Universalium

  • Fluorine — Fluorite Catégorie III : halogénures[1] Fluorite sur quartz Le Burg France Muséum de Toulouse …   Wikipédia en Français

  • fluorine — A gaseous chemical element, atomic no. 9, atomic wt. 18.9984032; 18F (half life of 1.83 h) is used as a diagnostic aid in various tissue scans. [L. fluere, flow] * * * fluo·rine flu̇( ə)r .ēn, ən n a nonmetal …   Medical dictionary

  • fluorine — noun a) The chemical element (symbol F) with an atomic number of 9. an octahedron of fluorines b) A fluorine atom. See Also: fluor, fluoric, fluorite …   Wiktionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”