Lexic.us

Definition of Fluorine

1. Noun. A nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite.

Definition of Fluorine

1. n. A non-metallic, gaseous element, strongly acid or negative, and 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 especially, that it can neither be prepared nor kept in glass vessels. If set free it immediately attacks the containing material, so that it was not isolated until 1886. It is a pungent, corrosive, colorless gas. Symbol F. Atomic weight 19.

Definition of Fluorine

1. Noun. The chemical element (''symbol'' F) with an atomic number of 9. ¹

2. Noun. (chemistry countable) A fluorine atom. ¹

¹ Source: wiktionary.com

Definition of Fluorine

1. a gaseous element [n -S]

Medical Definition of Fluorine

1. 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 especially, that it can neither be prepared nor kept in glass vessels. If set free it immediately attacks the containing material, so that it was not isolated until 1886. It is a pungent, corrosive, colourless gas. Fluorine unites with hydrogen to form hydrofluoric acid, which is the agent employed in etching glass. It occurs naturally, principally combined as calcium fluoride in fluorite, and as a double fluoride of aluminium and sodium in cryolite. Atomic weight: 19 Abbreviation: F Origin: NL. Fluorina: cf. G. Fluorin, F. Fluorine. So called from its occurrence in the mineral fluorite. (30 Mar 1998)

Lexicographical Neighbors of Fluorine

Literary usage of Fluorine

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of the American Chemical Society by American Chemical Society (1879)
"1в~гз The fluorine nucleus has a nuclear spin of V: and a nuclear moment of 2.627 nuclear magnetons; thus, it is very similar in its magnetic properties to ..."

2. Elements of Inorganic Chemistry: Including the Applications of the Science by Thomas Graham (1858)
"He supposes that soluble fluorine-compounds diffuse themselves through tie ... The same chemie ви likewise found fluorine in the ashes of ox-blood, milk, ..."

3. A Treatise on Chemistry by Henry Enfield Roscoe, Harold Govett Colman, Arthur Harden (1903)
"The atomic weight of fluorine has been determined by several chemists by converting either calcium ... fluorine AND HYDROGEN. HYDROFLUORIC ACID. HF=19'9. ..."

4. Elements of Chemical and Physical Geology by Gustav Bischof (1855)
"Hose observed that the amount of fluorine in mica is greater or less in proportion to the amount of iron present, and hence considers it probable that the ..."

5. A Text-book of Inorganic Chemistry by Arnold Frederik Holleman (1902)
"The free fluorine, which is given off as a gas at the positive electrode, ... The free fluorine gas was collected by MOISSAN in a platinum tube, ..."

6. Elements of Chemistry: Including the Most Recent Discoveries and by Robert Kane (1851)
"Of fluorine. Although the existence of this body is rendered exceedingly ... The only substances on which fluorine is incapable of acting being such as ..."

7. The Chemical News and Journal of Industrial ScienceChemistry (1897)
"fluorine was liquefied in a thick-walled glass tube which had been previously ... This rise in temperature is due to the fluorine gas attacking the glass. ..."

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