Definition of subteraqueous in English:

subteraqueous

adjective

rare
  • Existing, occurring, or situated underwater.

Origin

Late 17th century; earliest use found in Henry More (1614–1687), philosopher, poet, and theologian. From subter- + aqueous.

Pronunciation

subteraqueous

/ˌsʌbtəˈrakwɪəs//ˌsʌbtəˈreɪkwɪəs/