plasma thromboplastin antecedent

noun
plasma thromboplastin an·​te·​ced·​ent | \ -ˌant-ə-ˈsēd-ᵊnt How to pronounce plasma thromboplastin antecedent (audio) \

Medical Definition of plasma thromboplastin antecedent

: a clotting factor whose absence is associated with a form of hemophilia abbreviation PTA

called also factor XI

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