1. An area of knowledge, activity, or responsibility that has been extensively investigated, studied, or examined in great detail
Ancient Greek philosophy is a thoroughly explored domain in academic research.
A filosofia grega antiga é um domínio completamente explorado na pesquisa acadêmica.
2. A subject matter or field where comprehensive coverage and deep understanding have been achieved
Quantum mechanics is no longer a thoroughly explored domain; new discoveries emerge regularly.
A mecânica quântica não é mais um domínio completamente explorado; novas descobertas surgem regularmente.