precipitin

名词 precipitin:

1. an antibody that causes precipitation when it unites with its antigen

pre.cip.i.tin

n.（名词）
An antibody that reacts with a specific soluble antigen to produce a precipitate.
沉淀素：与特定可溶性抗原反应以产生沉淀物的抗体

来源：
precipit(ate)
precipit(ate)
-in
-in