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gneiss

play
noun \ˈnīs\

Definition of gneiss

  1. :  a foliated metamorphic rock corresponding in composition to a feldspathic plutonic rock (as granite)

gneissic play \ˈnī-sik\ adjective
gneissoid play \-ˌsȯid\ adjective
gneissose play \-ˌsōs\ adjective


Origin of gneiss

German Gneis, alteration of Middle High German gneiste spark, from Old High German gneisto; akin to Old English fȳrgnāst spark


First Known Use: 1757

Rhymes with gneiss


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