adjective hyp·abys·sal \ˌhi-pə-ˈbi-səl, ˌhī-\

Definition of hypabyssal

  1. :  of or relating to a fine-grained igneous rock usually formed at a moderate distance below the surface


play \ˌhi-pə-ˈbi-sə-lē, ˌhī-\ adverb

Origin and Etymology of hypabyssal

International Scientific Vocabulary

First Known Use: 1895

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