What term describes every type of proof legally presented at trial intended to convince the judge and/or jury of alleged facts material to the case?

The term that describes every type of proof legally presented at trial to convince the judge and/or jury of alleged facts material to the case is "evidence." Evidence encompasses a wide range of materials and information, including documents, physical objects, witness testimonies, expert opinions, and more. Its primary purpose is to establish the truth of the matters being debated in court.

While testimony refers specifically to the statements made by witnesses under oath during the trial, it is just one component of the broader category of evidence. Similarly, an affidavit is a written statement made under oath and can serve as a form of evidence, but it is not all-encompassing. Witness statements, while they contribute significantly to evidence, are still a specific type of testimony. Therefore, "evidence" is the most comprehensive term that captures all these elements and any other admissible proof presented in a legal setting.