Definition of pentahydrocalcite in English:
pentahydrocalcite
noun ˌpɛntəhʌɪdrə(ʊ)ˈkalsʌɪt
Mineralogy A mineral supposedly consisting of a pentahydrated form of calcium carbonate, CaCO₃·5H₂O, the natural occurrence of which is uncertain.
Origin
Early 20th century; earliest use found in Mineralogy Magazine. From penta- + hydro- + calcite, after Russian pentagidrokal′cit.
Definition of pentahydrocalcite in US English:
pentahydrocalcite
nounˌpɛntəhʌɪdrə(ʊ)ˈkalsʌɪt
Mineralogy A mineral supposedly consisting of a pentahydrated form of calcium carbonate, CaCO₃·5H₂O, the natural occurrence of which is uncertain.
Origin
Early 20th century; earliest use found in Mineralogy Magazine. From penta- + hydro- + calcite, after Russian pentagidrokal′cit.