Dictionary    Maps    Thesaurus    Translate    Advanced >   


Tip: Click Thesaurus above for synonyms. Also, follow synonym links within the dictionary to find definitions from other sources.

1. WordNet® 3.0 (2006)
gallium
    n 1: a rare silvery (usually trivalent) metallic element;
         brittle at low temperatures but liquid above room
         temperature; occurs in trace amounts in bauxite and zinc
         ores [syn: gallium, Ga, atomic number 31]

2. The Collaborative International Dictionary of English v.0.48
Gallium \Gal"li*um\, n. [NL.; perh. fr. L. Gallia France.]
   (Chem.)
   A rare metallic element, found combined in certain zinc ores.
   It is white, hard, and malleable, resembling aluminium, and
   remarkable for its low melting point (86[deg] F., 30[deg]
   C.). Symbol, Ga; at. wt., 69.9. Gallium is chiefly trivalent,
   resembling aluminium and indium. It was predicted with most
   of its properties, under the name eka-aluminium, by the
   Russian chemist Mendelyeev on the basis of the periodic law.
   This prediction was verified in its discovery (in 1875) by
   the French chemist Lecoq de Boisbaudran by its characteristic
   spectrum (two violet lines), in an examination of a zinc
   blende from the Pyrenees.
   [Webster 1913 Suppl.]

3. The Collaborative International Dictionary of English v.0.48
Ekaluminium \Ek*al`u*min"i*um\, n. [Skr. [=e]ka one + E.
   aluminium.] (Chem.)
   The name given by Mendeleev to a hypothetical element, --
   later discovered and called gallium. See Gallium, and cf.
   Ekabor. Also see periodic table.
   [1913 Webster +PJC]

4. The Elements (07Nov00)
gallium
Symbol: Ga
Atomic number: 31
Atomic weight: 69.72
Soft silvery metallic element, belongs to group 13 of the periodic
table.
The two stable isotopes are Ga-69 and Ga-71. Eight radioactive isotopes
are known, all having short half-lives. Gallium Arsenide is used as a
semiconductor. Corrodes most other metals by diffusing into their
lattice.
First identified by Francois Lecoq de Boisbaudran in 1875.


Common Misspellings >
Most Popular Searches: Define Misanthrope, Define Pulchritudinous, Define Happy, Define Veracity, Define Cornucopia, Define Almuerzo, Define Atresic, Define URL, Definitions Of Words, Definition Of Get Up, Definition Of Quid Pro Quo, Definition Of Irreconcilable Differences, Definition Of Word, Synonyms of Repetitive, Synonym Dictionary, Synonym Antonyms. See our main index and map index for more details.

©2011-2021 ZebraWords.com - Define Yourself - The Search for Meanings and Meaning Means I Mean. All content subject to terms and conditions as set out here. Contact Us, peruse our Privacy Policy