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[throm-boh-sahy-tuh-pee-nee-uh] /ˌθrɒm boʊˌsaɪ təˈpi ni ə/
an abnormal decrease in the number of blood platelets.
1920-25; thrombocyte + -o- + -penia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for thrombocytopenia
  • Another reason for petechiae is thrombocytopenia, a shortage of blood platelets.
  • thrombocytopenia is any disorder in which there is an abnormally low amount of platelets.
British Dictionary definitions for thrombocytopenia


(pathol) an abnormal decrease in the number of platelets in the blood
Word Origin
C20: from German thrombocytopenie from thrombocyte + Greek penia poverty
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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thrombocytopenia in Medicine

thrombocytopenia throm·bo·cy·to·pe·ni·a (thrŏm'bō-sī'tə-pē'nē-ə)
An abnormal decrease in the number of platelets in the blood. Also called thrombopenia.

throm'bo·cy'to·pe'nic (-pē'nĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for thrombocytopenia

abnormally low number of platelets (thrombocytes) in the circulation. Thrombocytopenia may occur as a result of decreased platelet production, when the bone marrow is malfunctioning or not functioning (e.g., in leukemia, from an excess of certain drugs or radiation, in certain anemias, or from a congenital lack of megakaryocytes, cells in the bone marrow that give rise to platelets), or as a result of increased platelet destruction (e.g., from a malfunctioning spleen, congestive heart failure, blood transfusion after hemorrhage, or incompatible blood transfusion). Symptoms of thrombocytopenia include small hemorrhages into the skin, nosebleeds, and easy bruising; sometimes gastrointestinal bleeding, excess menstrual bleeding, or other hemorrhage is observed. Treatment includes rest, protection from injury, and sometimes platelet transfusion.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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