ophiolite

[ of-ee-uh-lahyt, oh-fee- ]
/ ˈɒf i əˌlaɪt, ˈoʊ fi- /

noun Geology.

an assemblage of mafic igneous rocks representing remnants of former oceanic crust.

Origin of ophiolite

1840–50; < Greek óphi(s) snake + -o- + -lite; cf. ophite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019