1. An area of knowledge, research, or expertise that has been thoroughly investigated and documented
Medicine is a well-studied field with centuries of research behind it.
A medicina é um campo bem estudado com séculos de pesquisa por trás dela.
2. A subject or discipline that has extensive academic literature and established methodologies
Psychology has become a well-studied field in recent decades.
A psicologia se tornou um campo bem estudado nas últimas décadas.