Definition of "hydrides" [hydrides]

• Plural form of hydride. (noun)

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• "This is overcome with the use of metals in hydrides, but then these can only be used for certain applications because they are very heavy and are thus not good for storing in cars."
• "The result is it must be either highly compressed, which means very expensive carbon fiber tanks (steel won't do) or cryogenically chilled to liquify it and store it in very expensive dewar tanks, where it still will boil away, or store it absorbed in metal hydrides which is the most expensive and adds considerable weight."
• "If this technology was implemented in a fuel cell vehicle, it would cost about $200, as opposed to using carbon nanotube tanks (which cost about $5.5 million) or metal hydrides (which cost about $30,000)."