1. A location where scientific research, fieldwork, or data collection is conducted in natural or outdoor conditions
The archaeologists established a field site in the valley to excavate the ancient ruins.
Os arqueólogos estabeleceram um sítio de campo no vale para escavar as ruínas antigas.
2. A designated area where a field study, experiment, or investigation takes place outside of a laboratory
The biologists spent three months at the field site studying wildlife behavior.
Os biólogos passaram três meses no sítio de campo estudando o comportamento da vida selvagem.