from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A chemical compound containing aluminum as part of a negative ion.

from The Century Dictionary.

  • To treat or impregnate with alum; specifically, in printing engravings, to wash (the paper) with alum-water to prevent the running of the lines.
  • noun A salt in which alumina acts toward the stronger bases as an acid. Sodium aluminate is used as a mordant. The mineral spinel is a magnesium aluminate.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) A compound formed from the hydrate of aluminium by the substitution of a metal for the hydrogen.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry A compound, containing aluminium and oxygen with more electropositive elements, that is a salt of the hypothetical aluminic acid

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a compound of alumina and a metallic oxide


Sorry, no etymologies found.


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  • The BlackLight Process is suppose to use a catalyst that when heated up will drain the energy from hydrogen, but the presence of sodium aluminate residue in the "catalyst" leaves reasonable doubt that instead of getting the excess energy from lowering the orbit of the hydrogen electrons, instead it is from the burning of the aluminum in the Reney Nickel "catalyst."

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  • A big chunk of pink silicate (lithium aluminate, no doubt, he mused); broke free, fell to the ground.

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  • At higher ph values, higher rates of soluble aluminate ions form.

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  • A compound formed from sulphates and calcium aluminate; if it is formed after the mortar between the bricks is well set, it may cause softening and expansion of the mortar joints.

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  • It is possible to produce a mixed solution of aluminate and silicate of potash which will remain liquid for twenty-four hours.

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  • The pieces were passed through aluminate of soda at 18° B., then through ammonium chloride, washed, dyed with garancin, taken through an oil-bath, dried and steamed for an hour, and were finally cleared in the ordinary manner for Turkey-reds.

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  • Lastly, aluminate of soda may be used as a mordant in place of red liquor or sulphate of alumina.

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  • The calcium sulphate combines with the alumina of the cement, forming calcium sulpho-aluminate, which causes swelling and cracking of the concrete, and in cements containing a high proportion of alumina, leads to total destruction of all cohesion.

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  • The rare-earth aluminate compounds Pan will study under his CAREER Award offer the possibility of developing new materials that may be used to fabricate not just optical circuits, but efficient white LEDs.

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