platelet-activating factor(redirected from Platelet activating factor)
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Related to Platelet activating factor: Cytokines
platelet-activating factor[¦plāt·lət ′ak·tə‚vād·iŋ ‚fak·tər]
A phospholipid released by leukocytes that causes aggregation of platelets and other effects, such as an increase in vascular permeability and bronchoconstriction. Abbreviated PAF.