First Known Use: 1757
Dictionary
gneiss
noun \ˈnīs\
Definition of GNEISS
: a foliated metamorphic rock corresponding in composition to a feldspathic plutonic rock (as granite)
— gneiss·ic \ˈnī-sik\ adjective
— gneiss·oid \-ˌsȯid\ adjective
— gneiss·ose \-ˌsōs\ adjective
See gneiss defined for kids ADVERTISEMENT
Origin of GNEISS
German Gneis, alteration of Middle High German gneiste spark, from Old High German gneisto; akin to Old English fȳrgnāst spark
Learn More About GNEISS
Browse
Next Word in the Dictionary: Gnesio–LutheranPrevious Word in the Dictionary: gndAll Words Near: gneiss
ADVERTISEMENT
Seen & Heard
What made you want to look up gneiss? Please tell us where you read or heard it (including the quote, if possible).