trinomial

1 of 2

noun

tri·​no·​mi·​al trī-ˈnō-mē-əl 

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

trinomial

2 of 2

adjective

1

: consisting of three mathematical terms

2

: of, relating to, or being a biological trinomial

Examples of trinomial in a Sentence

Recent Examples on the Web

Noun

How necessary is intermediate algebra, a high school-level course on factoring trinomials, graphing exponential functions and memorizing formulas that most non-math or science students will rarely use in everyday life or for the rest of college? —Rosanna Xia, latimes.com, 30 June 2017

Word History

Etymology

Noun

tri- + -nomial (as in binomial)

First Known Use

Noun

1674, in the meaning defined at sense 1

Adjective

circa 1704, in the meaning defined at sense 1

Kids Definition

trinomial

1 of 2 noun

tri·​no·​mi·​al trī-ˈnō-mē-əl 

: a polynomial that has three terms

trinomial

2 of 2 adjective

: consisting of three mathematical terms

Medical Definition

trinomial

1 of 2 noun

tri·​no·​mi·​al trī-ˈnō-mē-əl 

: a trinomial name

trinomial

2 of 2 adjective

1

: being a name belonging to botanical or zoological nomenclature composed of a first term designating the genus, a second term designating the species, and a third term designating the subspecies or variety to which an organism belongs

2

: of or relating to trinomials

trinomial nomenclature