Look up: fluorine

1. fluorine
   [n] - a nonmetallic univalent element belonging to the halogens
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Fluorine
   Fluorine is a pale greenish yellow gas that is the first in the halogen group. Symbol F
   Found on http://www.diracdelta.co.uk/science/sour
   
   
3. fluorine
   chemical element:atomic number 9 Category: Chemistry
   Found on http://www.mijnwoordenboek.nl/definition
   
   
4. Fluorine
   Flu'or·ine (flū'ŏr*ĭn or -ēn; 104) noun [ New Latin fluorina : confer German fluorin , French fluorine . So called from its occurrence in the mineral fluorite .] (Chemistry) A non-metallic,...
   Found on http://www.encyclo.co.uk/webster/F/49
   
   
5. fluorine
   <chemistry, element> A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and si...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
6. fluorine
   (F) (floor´ēn) a chemical element, atomic number 9, atomic weight 18.998. fluorine 18 a radioactive isotope of fluorine, atomic mass 18, having a half-life of 1.8925 hours; it has been used as a tracer in positron emission tomography.
   Found on http://www.encyclo.co.uk/local/21001
   
   
7. Fluorine
   • (n.) A non-metallic, gaseous element, strongly acid or negative, or associated with chlorine, bromine, and iodine, in the halogen group of which it is the first member. It always occurs combined, is very active chemically, and possesses such an avidity for most elements, and silicon especiall...
   Found on http://thinkexist.com/dictionary/meaning
   
   
8. fluorine
   most reactive chemical element and the lightest member of the halogen elements, or Group 17 (Group VIIa) of the periodic table.[15 related articles]
   Found on http://www.britannica.com/eb/a-z/f/40
   
   
9. fluorine
   fluorine (flOO'urēn, –rin) , gaseous chemical element; symbol F; at. no. 9; at. wt. 18.998403; m.p. -219.6°C; b.p. -188.14°C; density 1.696 grams per liter at STP; valence -1. Fluorine is a yellowish, poisonous, highly corrosive gas. It is the most chemically active nonmetall...
   Found on http://www.infoplease.com/ce6/sci/A08190
   
   
10. Fluorine
    Fluorine is a very poisonous greenish-yellow gaseous element with the symbol F belonging to the group known as the halogens. It is the most chemically reactive element (many substances ignite spontaneously in it), and for this reason it is never found uncombined. Fluorine was isolated in 1886 by Moi...
    Found on http://www.probertencyclopaedia.com/brow
    
    
11. fluorine
    (F) Type: Term Pronunciation: flōr′ēn Definitions: 1. 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.
    Found on http://www.medilexicon.com/medicaldictio
    
    
12. fluorine
    Pale yellow, gaseous, non-metallic element, atomic number 9, relative atomic mass 19. It is the first member of the halogen group of elements, and is pungent, poisonous, and highly reactive, uniting directly with nearly all the elements. It occurs naturally as the minerals fluorite (CaF₂) and cryolite (Na_{3
    Found on http://www.talktalk.co.uk/reference/ency}