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

Origin of TRINOMIAL

tri- + -nomial (as in binomial)
First Known Use: 1674

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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