Is second-term polynominal a bionomial polynominal?

Answer 1

A binomial is an algebraic expression of the sum or the difference of two terms.

A polynomial is an expression of more than two algebraic terms, esp. the sum of several terms that contain different powers of the same variable(s).

The degree of a polynomial is the highest degree of its terms.

Now that we have the definitions and the correct spellings out of the way, the answer to your question is a qualified no. There's no such thing as a second-term polynomial. I suspect you mean second degree, but both binomials and polynomials can be second-degree. There's also no such thing as a binomial polynomial. Expressions of two terms are binomials, more than two terms are polynomials, exactly three terms are trinomials.