Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

trinomial

play
noun tri·no·mi·al \trī-ˈnō-mē-əl\

Definition of trinomial

  1. 1 :  a polynomial of three terms

  2. 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


2

trinomial

adjective tri·no·mi·al

Definition of trinomial

  1. 1 :  consisting of three mathematical terms

  2. 2 :  of, relating to, or being a biological trinomial



Circa 1704

First Known Use of trinomial

circa 1704


Learn More about trinomial

  1. Medical Dictionary: Definition of "trinomial"


Seen and Heard

What made you want to look up trinomial? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to defraud especially of money

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

prompt angry maudlin oily
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ