First Known Use: 1674
Dictionary
1trinomial
noun tri·no·mi·al \trī-ˈnō-mē-əl\
Definition of TRINOMIAL
1
: a polynomial of three terms
2
: a biological taxonomic name of three terms of which the first designates the genus, the second the species, and the third the subspecies or variety
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Origin of TRINOMIAL
tri- + -nomial (as in binomial)
2trinomial
adjective
Definition of TRINOMIAL
1
: consisting of three mathematical terms
2
: of, relating to, or being a biological trinomial
First Known Use of TRINOMIAL
circa 1704
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