Final answer:
Residual in the context of a discussion between physicians refers to something that is remaining after treatment or removal.
Step-by-step explanation:
Residual in the context of a discussion between physicians refers to something that is remaining after treatment or removal. It is the leftover or persisting effect of a disease, condition, or treatment. For example, if a patient has residual pain after undergoing surgery, it means they still experience lingering pain after the surgical procedure.