adj ·4 syllables ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Beneath a volcano. not-comparable
2. 2
   Intrusive, but having grain size and texture intermediate between volcanic and plutonic rocks. not-comparable

Synonyms

All synonyms

hypabyssalhypabyssal

Etymology

From sub- + volcanic.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.