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Pronunciation varies by accent · noun
(mineralogy) Any of a small group of igneous, plutonic, and volcanic minerals formed in magma that did not contain enough silica to satisfy all the chemical bonds. Feldspathoids are silica-poor variants of the feldspar group..
Use feldspathoid when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Feldspathoid means (mineralogy) Any of a small group of igneous, plutonic, and volcanic minerals formed in magma that did not contain enough silica to satisfy all the chemical bonds. Feldspathoids are silica-poor variants of the feldspar group..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use feldspathoid where its definition matches the intended context.
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