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glauco-

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  1. a combining form meaning “gray, opaque,” used in the formation of compound words: glaucophane.
Also especially before a vowel, glauc-.

Origin of glauco-

< Greek glauko-, glauk-, comb. forms of glaukós
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018