First Known Use: 1849
Dictionary
microcline
noun mi·cro·cline \ˈmī-krō-ˌklīn\
Definition of MICROCLINE
: a triclinic mineral of the feldspar group that is like orthoclase in composition
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Origin of MICROCLINE
German Mikroklin, from mikr- micr- + Greek klinein to lean — more at lean
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