1. An area or aspect of a subject that has not been adequately studied or investigated, representing a need for further research
The researchers identified a significant research gap in understanding how climate change affects deep-sea ecosystems.
Os pesquisadores identificaram uma lacuna de pesquisa significativa na compreensão de como as mudanças climáticas afetam os ecossistemas do fundo do mar.
2. A discrepancy between what is known and what remains unknown in a particular field of study
This study aims to fill the research gap in adolescent mental health interventions.
Este estudo visa preencher a lacuna de pesquisa nas intervenções de saúde mental do adolescente.