Definition of metabasite in English:

metabasite

Pronunciation /ˌmɛtəˈbasʌɪt/ /ˌmɛtəˈbeɪsʌɪt/

noun

Geology
  • A fully metamorphosed form of a basic rock such as basalt or dolerite.

Origin

Early 20th century. From meta- + bas- + -ite.