- Algebra. consisting of or pertaining to three terms.
- pertaining to a scientific name comprising three terms, as of genus, species, and subspecies or variety.
- characterized by the use of such names.
- Algebra. an expression that is a sum or difference of three terms, as 3x + 2y + z or 3x3 + 2x2 + x.
- Biology. a trinomial name, as Rosa gallica pumila.
Origin of trinomial
Examples from the Web for trinomial
Historical Examples of trinomial
A trinomial in algebra is a quantity consisting of three terms.Orthography
Elmer W. Cavins
I have sometimes loosely speculated on what nomenclature would come to, and concluded that it would be trinomial.More Letters of Charles Darwin
Duellman used the trinomial for this population and named a new subspecies, pallidus, from Nayarit.
The trinomial is used whenever subspecific identities could be made with a reasonable degree of certainty.Summer Birds From the Yucatan Peninsula
Erwin E. Klaas
- maths consisting of or relating to three terms
- biology denoting or relating to the three-part name of an organism that incorporates its genus, species, and subspecies
- maths a polynomial consisting of three terms, such as ax ² + bx + c
- biology the third word in the trinomial name of an organism, which distinguishes between subspecies
Word Origin for trinomial
- A mathematical expression that is the sum of three monomials, such as ax2 + bx - c.
- A taxonomic designation indicating genus, species, and subspecies or variety, as in Brassica oleracea botrytis, the cauliflower.