From Longman Dictionary of Contemporary Englishbinomialbi‧no‧mi‧al /baɪˈnəʊmiəl $ -ˈnoʊ-/ noun [countable] HM technical a mathematical expression that has two parts connected by the sign + or the sign −, for example 3x + 4y or x − 7 —binomial adjectiveOrigin binomial (1500-1600) Modern Latin binomium, from Latin binominis, from bi- ( → BI-) + nomen “name”
