naph·tho·qui·none
Medical Definition of naphthoquinone
: any of three isomeric yellow to red crystalline compounds C10H6O2 derived from naphthalene
especially
: one that occurs naturally in the form of derivatives (as vitamin K)
Test Your Vocabulary
Name that Thing: Flower Edition
-
- Name that flower

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share naphthoquinone