xenocrystEnglishOxford Dictionary of Englishxenocryst /ˈzɛnə(ʊ)krɪst / ▸ noun Geology a crystal in an igneous rock which is not derived from the original magma. – DERIVATIVES xenocrystic /zɛnə(ʊ)ˈkrɪstɪk/ adjective– ORIGIN late 19th century: from xeno- ‘foreign’ + crystal.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
