WordReference Random House Unabridged Dictionary of American English © 2026
mi•cro•cline
(mī′krə klīn′),USA pronunciation n.
- Mineralogya mineral of the feldspar group, potassium aluminum silicate, KAlSi3O8, identical in composition with orthoclase but having triclinic instead of monoclinic crystals, used in making porcelain.
- Greek klí̄nein to lean1, referring to the angles between its cleavage planes, which differ slightly from 90°
- micro- + -cline 1840–50
'microcline' also found in these entries (note: many are not synonyms or translations):