Used to describe how many monomials a polynomial contains. Polynomial is a mathematical term used to describe how many monomials are contained in a polynomial. In polynomial, each monomial is called a term of polynomial; The highest degree of each term is called the degree of the polynomial. For example, x 4+x 2-44 is a quartic trinomial, that is, the highest degree of this polynomial is 4, which consists of three monomials.