noun[mass noun] Medicine
Abnormal proliferation of the cells that produce blood platelets, leading to an excess of platelets in the blood and increasing risk either of thrombosis or of bleeding.
More example sentences
- The blood dyscrasias that most commonly lead to leg ulceration are sickle cell disease, thalassaemia, thrombocythaemia, and polycythaemia rubra vera.
- Erythromelalgia, a symptom complex of painful inflammatory vasodilatation of extremities, is usually idiopathic or due to thrombocythaemia.
- Dehydration during the marathon combined with an underlying thrombocythaemia probably precipitated his thrombosis.