pol ‧ y ‧ no ‧ mi ‧ al /ˌpɒlɪˈnəʊmiəl $ ˌpɑːlɪˈnoʊ-/ BrE AmE noun [countable] technical
[ Date: 1600-1700 ; Origin: poly- + -nomial (as in binomial ) ]
a statement in ↑ algebra that contains several different numbers and signs which are equal to a specific amount:
polynomial equations