Definition of binomial
1
: a mathematical expression consisting of two terms connected by a plus sign or minus sign
2
: a biological species name consisting of two terms
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share binomial
Time Traveler for binomial
The first known use of binomial was in 1557
See more words from the same year