Definition: A coadjutrices is a term used in mathematics to describe a special type of matrix. In linear algebra, it refers to a special kind of square matrix that has real entries and is symmetric positive-definite. This means that its eigenvalues are all non-negative integers and its determinant is non-zero. The term "coadjutrices" can also refer to the concept of coadjutivity in physics, where two objects (in this case matrices) are said to be coadjuctive