Physical mind- The Pudgala (material aggregates) belonging to the Manovargaṇā (a class of material clusters which are specifically used in the process of thinking and reflecting) which get transformed in the form of Mana (mind).
manastvena pariṇatāni pudgaladravyāṇi dravyamanaḥ.
(Jaisidī 2.41 Vṛ)
See - Bhāvamana.