Back to Top Exams and Tests. Your health care provider can usually diagnose acanthosis nigricans by looking at your skin. A skin biopsy may be needed in unusual cases. If there is no clear cause of acanthosis nigricans, your doctor may order tests. This may include: 1  Blood tests to check blood sugar level.
The definition of unlike is a person or thing that is different from another. An example of unlike is a woman with short hair in a group of women with long hair. The definition of unlike is to withdraw your previously-posted expression of liking someone or something on a social media website. An example of unlike is to remove the like which you previously selected under a post from one of your friends on FaceBook. An example of unlike is to remove a television show which you previously had noted as one of your likes on FaceBook.
(dÄ­fâ²Ér) intr.v. difÂ·fered, difÂ·ferÂ·ing, difÂ·fers. 1. To be dissimilar or unlike in nature, quality, amount, or form: Ambition differs from greed. 2. To be of a different opinion; disagree: The experts differ on what should be done to fix the economy.