immunodiffusion

American

[im-yuh-noh-di-fyoo-zhuhn, ih-myoo-] / ˌɪm yə noʊ dɪˈfyu ʒən, ɪˌmyu- /

noun

any of various analytical techniques that involve antigen and antibody solutions diffusing toward each other in a gel until antibody binds specifically to antigen to form a precipitate.

First recorded in 1955–60; immuno- + diffusion

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023