thrombocytopenia

As a noun thrombocytopenia

is (hematology) an abnormally low number of platelets in the blood.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between thrombocytopenia and pancytopenia

is that thrombocytopenia is an abnormally low number of platelets in the blood while pancytopenia is a form of anemia in which there is a reduction in the numbers of red blood cells, white blood cells and platelets.

As nouns the difference between thrombocythemia and thrombocytopenia

is that thrombocythemia is thrombocytosis while thrombocytopenia is an abnormally low number of platelets in the blood.

As nouns the difference between thrombosis and thrombocytopenia

is that thrombosis is the formation of thrombi in the blood vessels of a living organism, causing obstruction of the circulation while thrombocytopenia is an abnormally low number of platelets in the blood.

As nouns the difference between taxonomy and thrombocytopenia

is that taxonomy is the science or the technique used to make a classification while thrombocytopenia is (hematology) an abnormally low number of platelets in the blood.

Cytopenia is a derived term of thrombocytopenia.

As nouns the difference between thrombocytopenia and cytopenia

is that thrombocytopenia is an abnormally low number of platelets in the blood while cytopenia is a reduction in the number of blood cells for any of several reasons.