# Trinomially

## trinomial

[trahy-noh-mee-uhl]
1.
Algebra. consisting of or pertaining to three terms.
2.
Biology.
a.
pertaining to a scientific name comprising three terms, as of genus, species, and subspecies or variety.
b.
characterized by the use of such names.
noun
3.
Algebra. an expression that is a sum or difference of three terms, as 3 x + 2 y + z or 3 x 3 + 2 x 2 + x.
4.
Biology. a trinomial name, as Rosa gallica pumila.

Origin:
1665–75; tri- + (bi)nomial

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To trinomially
Collins
World English Dictionary
 trinomial (traɪˈnəʊmɪəl) —adj 1. maths consisting of or relating to three terms 2. biology denoting or relating to the three-part name of an organism that incorporates its genus, species, and subspecies —n 3. maths a polynomial consisting of three terms, such as ax² + bx + c 4. biology the third word in the trinomial name of an organism, which distinguishes between subspecies [C18: tri- + -nomial on the model of binomial] tri'nomially —adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
 trinomial   (trī-nō'mē-əl)  Pronunciation Key  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.
The American Heritage® Science Dictionary