Word.ws English Dictionary

augengneiss

/ˈaʊ̯ɡənˌnaɪ̯sɪz/

augengneiss noun: a type of metamorphic rock characterized by large, lenticular mineral grains or crystal aggregates (usually feldspar or quartz grains that have been deformed during metamorphism), resembling eyes, embedded within a finer-grained matrix.

Noun

augengneiss (countable and uncountable, plural augengneisses)

  1. A type of metamorphic rock characterized by large, lenticular mineral grains or crystal aggregates (usually feldspar or quartz grains that have been deformed during metamorphism), resembling eyes, embedded within a finer-grained matrix.
    • The term ‘Augengneiss’ has a definite use in German petrography, and is properly used to denote those gneisses "in which single large felspar-masses (orthoclase), in form ranging from the blunt lenticular to the approximately spherical, occur, segregated from the matrix of the rock which possesses...1889, A. IRVING, CHEMICAL AND PHYSICAL STUDIES int the METAMORPHISM of ROCKS based on A THESIS (WITH APPENDICES) WRITTEN FOR THE DOCTORATE IN SCIENCE IN THE UNIVERSITY OF LONDON., page 67
    • Rocks of this migmatitic formation, having a smaller quantity of neosome, are augengneisses.1964, Bruno Zanettin, Geology and Pertrology of Haramosh-mango Gusor Area (Italian Expeditions to the Karakorum (K²) and Hindu Kush SCIENTIFIC REPORTS; III - Geology - Petrology), volume I, Brill...

Forms of augengneiss

pluralaugengneisses

Origin of augengneiss

From German Augen (“eyes”) + gneiss

Questions about augengneiss

What does augengneiss mean?
Augengneiss means a type of metamorphic rock characterized by large, lenticular mineral grains or crystal aggregates (usually feldspar or quartz grains that have been deformed during metamorphism), resembling eyes, embedded within a finer-grained matrix.
What part of speech is augengneiss?
Augengneiss is a noun.
How do you pronounce augengneiss?
Augengneiss is pronounced /ˈaʊ̯ɡənˌnaɪ̯sɪz/.
What is the plural of augengneiss?
The plural of augengneiss is augengneisses.

Words near augengneiss in the dictionary

  1. Augello
  2. Augellos
  3. augen
  4. augend
  5. augends
  6. augengneiss
  7. augengneisses
  8. Augenstein
  9. Augensteins
  10. auger
  11. Auger effect

Source and license

Adapted from Wiktionary: augengneiss (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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