#### Answer

"A monomial is a polynomial with exactly one term." The answer is "monomial".

#### Work Step by Step

It is helpful to remember that the prefix of each Polynomial type signifies a certain number:
In the Polynomial type monomial, its prefix is mono-, meaning 1. So, monomials only have 1 term in an equation.
The prefix bi- for binomial means 2. So, binomials have 2 terms in an equation.
The prefix tri- for trinomials means 3. So, trinomials have 3 terms in an equation
Based on the supplied information as an equation containing "exactly one term," we know such an equation is monomial.