trinomial
1tri·no·mi·al
noun \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
See Origin of TRINOMIAL
tri- + -nomial (as in binomial)
First Known Use: 1674
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