To save this word, you'll need to log in.
acanthosis ni·gri·cans | \ -ˈnig-rə-ˌkanz 
, -ˈnī-grə- \
, -ˈnī-grə- \Medical Definition of acanthosis nigricans
: a skin condition that is marked by dark discoloration and velvety thickening of the skin especially of body folds or creases (as of the armpit, groin, or neck) and that is often associated with obesity, insulin resistance, hormonal irregularity, or medication use but may rarely occur as a sign of cancer (as of the stomach or liver)
Comments on acanthosis nigricans
What made you want to look up acanthosis nigricans? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Semantic Drift Quiz
- Which of the following was once a synonym for fun?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share acanthosis nigricans