The condition of having an abnormally high number of thrombocytes (platelets) in the bloodstream; can give a predisposition to thrombosis(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "thrombocytosis" in a sentence
"Abrahams believes the company is undervalued, based mostly on 424s potential in treating myelofibrosis, Polycythemia vera, and Essential thrombocytosis, and in part, on the early promise of rheumatoid arthritis drug INCB28050."
"It's also frequently found in patients with essential thrombocytosis, an overproduction of platelets that usually requires no treatment and can be addressed with blood-thinners when patients have symptoms."
"Aside from agranulocytosis, the bone marrow and blood show a number of other abnormalities (including maturational arrest of neutrophil precursors at the promyelocyte stage, absolute monocytosis, eosinophilia and thrombocytosis)."