plural chromos
Definition of chromo
(Entry 1 of 2)
chromo-
combining form
variants:
or before vowels chrom-
Definition of chromo- (Entry 2 of 2)
1a
: color : colored
chromolithograph
b
: pigment
chromogen
2
: chromium
chromaffin
Keep scrolling for more
Test Your Vocabulary
The Exceptions Quiz III
-
- Which of these words does not mean "nonsense"?

Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share chromo
Time Traveler for chromo
The first known use of chromo was in 1868
See more words from the same year