alkalic

[al-kal-ik]
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adjective Geology.

(of igneous rock) containing a relatively high percentage of sodium and potassium alkali.

Origin of alkalic

1725–35, in sense “alkaline;” alkal(i) + -ic
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British Dictionary definitions for alkalic

alkalic

adjective

(of igneous rocks) containing large amounts of alkalis, esp sodium and potassium
another word for alkaline
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012