immunodiffusion

noun

im·​mu·​no·​dif·​fu·​sion ˌi-myə-nō-di-ˈfyü-zhən 

i-ˌmyü-nō-

: any of several techniques for obtaining a precipitate between an antibody and its specific antigen by suspending one in a gel and letting the other migrate through it from a well or by letting both antibody and antigen migrate through the gel from separate wells to form an area of precipitation

Word History

Etymology

immuno- + diffusion

First Known Use

1959, in the meaning defined above

Medical Definition

immunodiffusion

noun

im·​mu·​no·​dif·​fu·​sion -dif-ˈyü-zhən 

: any of several techniques for obtaining a precipitate between an antibody and its specific antigen by suspending one in a gel and letting the other migrate through it from a well or by letting both antibody and antigen migrate through the gel from separate wells to form an area of precipitation