binomial

1. not comparableConsisting of two terms, or parts.

   Finally, instead of returning to Chile’s traditional proportional representation system, the law adopted the “binomial” system, which gave strong incentives to the parties to form broad coalitions.

   1992, Rhoda Rabkin, “The Aylwin Government and ‘Tutelary’ Democracy: A Concept in Search of a Case?”, in Journal of Interamerican Studies and World Affairs, volume 34, number 4, →JSTOR, page 139

2. not comparablemathematicsOf or relating to the binomial distribution.

   Assuming a normal approximation to binomial probabilities the proportion of total complications reported for 1979–85 in the age class 0–14 years was significantly higher than the proportion in the same age class for the period 1962–69 (p < 0·0001)

   1991 November 23, D. J. Nokes, R. M. Anderson, “Vaccine safety versus vaccine efficacy in mass immunisation programmes”, in The Lancet, volume 338, number 8778, →DOI, page 1309

plural binomials

1. algebraA polynomial with two terms.

   Synonyms: binome

2. algebraA quantity expressed as the sum or difference of two terms.
3. biologyA scientific name at the rank of species, with two terms: a generic name and a specific name.

   Common name followed by Latin binomial in parentheses.

   1991, Daniel W. Gade, “Weeds in Vermont as Tokens of Socioeconomic Change”, in Geographical Review, volume 81, number 2, →JSTOR, page 169

   Synonyms: binomen, binomial name, binominal, binominal name, species name, dionym