noun🔗Share安山岩 A class of fine-grained intermediate igneous rock, of volcanic origin, containing mostly plagioclase feldspar."The rocky cliff was made of andesite, a volcanic rock common in this region. "这片岩石峭壁由安山岩构成,安山岩是一种火山岩,在这片区域很常见。geologymaterialChat with AIVocabulary GamePractice Reading