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Definition of binomial:
 An expression consisting of two terms connected by the sign plus (+) or minus (); as, a + b, or 7  3.
 Consisting of two terms; pertaining to binomials; as, a binomial root.
 Having two names;  used of the system by which every animal and plant receives two names, the one indicating the genus, the other the species, to which it belongs.
Synonyms:
calculation, adage, axiom, algorithm, decimal place, cliche, catchphrase, algorithm, abacus, aphorism, cite, approximation, computational, binominal, average, cheer, battle cry, citation, deviation, countdown.
Usage examples:

What universal binomial denominations would be his as entity and nonentity?
 "Ulysses", James Joyce. 
Then came a group of girl students, all very much alike, all full of cocoa and the binomial theorem; while the rest of the audience was made up of typists, clerks, civil servants, copper workers, palmists, nurses, Americans and poets, all lending their ears to the speaker's words as in the Zoological Gardens elephants, swaying gently, offer their trunks for buns.
 "Carnival", Compton Mackenzie. 
Bushido had a standard of its own and it was binomial.
 "Bushido, the Soul of Japan", Inazo NitobĂ©.