antecedent

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antecedent

 [an″te-se´dent]
a precursor.
plasma thromboplastin antecedent (PTA) factor XI, one of the coagulation factors.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

an·te·ced·ent

(an'te-sē'dent),
A precursor.
[L. antecedo, to go before]
Farlex Partner Medical Dictionary © Farlex 2012

antecedent

adjective Existing or occurring before, which may be linked to subsequent events. See Preexisting.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

an·te·ced·ent

(an'tĕ-sē'dĕnt)
A precursor.
[L. antecedo, to go before]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

an·te·ced·ent

(an'tĕ-sē'dĕnt)
A precursor.
[L. antecedo, to go before]
Medical Dictionary for the Dental Professions © Farlex 2012