a group consisting of following four words Bhishag(Physician), Dravya(Drugs/Medicine), Upasthata(Attendent) and Rogi(Patient) :
चतुष्पाद ( catuṣpāda )Meaning: a group consisting of following four words Bhishag(Physician), Dravya(Drugs/Medicine), Upasthata(Attendent) and Rogi(Patient)
