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Definition of Andesite
1. Noun. A dark grey volcanic rock.
Generic synonyms: Igneous Rock
Definition of Andesite
1. n. An eruptive rock allied to trachyte, consisting essentially of a triclinic feldspar, with pyroxene, hornblende, or hypersthene.
Definition of Andesite
1. a volcanic rock [n -S]
Medical Definition of Andesite
1.