Definition of microbreccia in English:

microbreccia

noun

Geology
  • Breccia containing relatively small particles of mineral or rock.

Origin

1920s; earliest use found in George Walter Tyrrell (b. 1883). From micro- + breccia.

Pronunciation

microbreccia

/ˌmʌɪkrə(ʊ)ˈbrɛtʃ(ɪ)ə/