the lead researcher in a project, particularly in scientific studies

the head of a research project who oversees its progress and funding

अनुसंधान परियोजना का प्रमुख

English Usage: As the principal investigator, she was responsible for managing the team and resources.

Hindi Usage: प्रमुख अन्वेषक के रूप में, वह टीम और संसाधनों का प्रबंधन करने के लिए जिम्मेदार थीं।