hyperviscosity

/ˌhaɪpərvɪˈskɑsəti/
noun
  1. A condition in which a fluid, especially blood, is abnormally thick and sticky, making it difficult to flow.
    • Hyperviscosity can be treated with medications that thin the blood and improve flow.
    • Doctors diagnosed hyperviscosity syndrome after noticing the patient's blood was unusually thick.
    • The patient's hyperviscosity caused poor circulation and increased the risk of blood clots.
Antonyms