Liberal Dictionary English Dictionary
trinomial [trahy-noh-mee-uh l] EXAMPLES|WORD ORIGIN adjective Algebra. consisting of or pertaining to three terms. Biology.
- pertaining to a scientific name comprising three terms, as of genus, species, and subspecies or variety.
- characterized by the use of such names.
noun Algebra. an expression that is a sum or difference of three terms, as 3x + 2y + z or 3×3 + 2×2 + x. Biology. a trinomial name, as Rosa gallica pumila. Liberaldictionary.com
Origin of trinomial First recorded in 1665–75; tri- + (bi)nomial Related formstri·no·mi·al·ly, adverb Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for trinomial Historical Examples of trinomial
A trinomial in algebra is a quantity consisting of three terms.
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
Charles Darwin
Duellman used the trinomial for this population and named a new subspecies, pallidus, from Nayarit.
A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope
John D. Lynch
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
British Dictionary definitions for trinomial trinomial adjective 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 noun 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 Derived Formstrinomially, adverbWord Origin for trinomial C18: tri- + -nomial on the model of binomial Collins English Dictionary – Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Word Origin and History for trinomial
1670s, from tri- + second element from binomial.
Online Etymology Dictionary, © 2010 Douglas Harper trinomial in Science trinomial [trī-nō′mē-əl] 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 Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
