What is half crystalline; -- said of certain cruptive rocks composed partly of crystalline, partly of amorphous matter called?
semicrystalline — Half crystalline; -- said of certain cruptive rocks composed partly of crystalline, partly of amorphous matter. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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