Can anybody actually give a satisfactory definition of "objective reality"?
Not completely since "satisfactory" is subjective.
Something like Descartes'
Meditations III where he delineates between degrees of reality, substances and modes and formal realities is not for me "satisfactory."
I've always liked the simple approach where objective reality is what is left when all the subjective cultural constructs are stripped away (mind independent if you will).
I would suggest a separation between "objective reality" and the "perception of objective reality" since the latter must be mind dependent and must be verified by other sentient minds.