serpentinite Syllabification: (ser·pen·tin·ite)Pronunciation: /ˌsərpənˈtēnīt, -ˈtī-/Definition of serpentinite noun Geology a dark, typically greenish metamorphic rock, consisting largely of serpentine or related minerals, formed when mafic igneous rocks are altered by water. Origin: 1930s: from serpentine + -ite1serpentinite in other Oxford dictionaries Definition of serpentinite in the British & World English dictionary
