SINCE 1828
hyperprothrombinemia
noun
hy·per·pro·throm·bin·emia
variants:
or chiefly British hyperprothrombinaemia \ -prō-ˌthräm-bə-ˈnē-mē-ə 
\
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Medical Definition of hyperprothrombinemia
: an excess of prothrombin in the blood
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