1. A field, area of knowledge, or sphere of activity that is well-recognized, accepted, and has been in existence for a considerable time
Physics is an established domain in scientific research.
A Física é um domínio estabelecido na pesquisa científica.
2. In computing and internet terminology, a domain name that has been registered and is in active use for a prolonged period
The company's established domain has been operating since 1995.
O domínio estabelecido da empresa está operando desde 1995.
3. A recognized area of expertise or jurisdiction that is widely accepted within a professional field
Law is an established domain with centuries of precedent.
O Direito é um domínio estabelecido com séculos de precedentes.