What is Adminicular Evidence?

Legal Definition
Eccl. law. This term is used in the eclesiastical law to signify evidence, which is brought to explain or complete other evidence. 2 Lee, Ecel.R. 595.
-- Bouviers Law Dictionary
Legal Definition
Auxiliary or supplementary evidence, such as is presented for the purpose of explaining and completing other evidence. (Chiefly used in ecclesiastical law.)
-- Black's Law Dictionary