1) Amount 2) Polynomial 3) Total 1) Polynomial 
• (n. & a.) Same as Polynomial.
In the context of discrete choice models, multinomial means there are more than two possible values of the dependent variable, the choice, which is a scalar. For specific constructions see multinomial logit and multinomial probit. Contexts: econometrics
Mul`ti·no'mi·al noun & adjective [ Multi- + -nomial , as in binomial. See Binomial .] (Alg.) Same as Polynomial . 
polynomial, multinomial Used to describe a mathematical expression that has more than two terms, or a system of taxonomic nomenclature that uses more than two names.
polynomial (def. 3c).