prekallikreinWiktionary 原文英美构词拆解prepre-前缀kallikreinkallikrein词干pre-Before; physically in front of. · Before; earlier in time; beforehand.词源说明From pre- + kallikrein.释义名词noun1A serine protease that complexes with high-molecular-weight kininogen; the precursor of plasma kallikrein.