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hexahydride
hexahydride n.
Brit. 
/ˌhɛksəˈhʌɪdrʌɪd/
, /ˌhɛksəˈhʌɪdrʌɪd/U.S. /ˌhɛksəˈhaɪˌdraɪd/
/ˌhɛksəˈhaɪˌdraɪd/ΚΠ
1913 V. B. Lewes Oil Fuel 41 In the Russian oils the more important members belong to the series of hydrocarbons known as naphthenes or hexahydrides, in which the ratio of carbon to hydrogen is CnH2n.
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