Lexic.us

Definition of Gneiss

1. Noun. A laminated metamorphic rock similar to granite.

Definition of Gneiss

1. n. A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornblendic or syenitic gneiss. Similar varieties of related rocks are also called gneiss.

Definition of Gneiss

1. Noun. (geology) A common and widely-distributed metamorphic rock having bands or veins, but not schistose. ¹

¹ Source: wiktionary.com

Definition of Gneiss

1. a type of rock [n -ES] : GNEISSIC [adj]

Medical Definition of Gneiss

1. A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornblendic or syenitic gneiss. Similar varieties of related rocks are also called gneiss. Origin: G. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Gneiss

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