WordReference Random House Unabridged Dictionary of American English © 2026
im•mu•no•bi•ol•o•gy
(im′yə nō bī ol′ə jē, i myo̅o̅′-),USA pronunciation n.
im•mu•no•bi•o•log•ic
(im′yə nō bī′ə loj′ik, i myo̅o̅′-),USA pronunciation im′mu•no•bi′o•log′i•cal, adj.
im′mu•no•bi•ol′o•gist, n.
- Biologythe study of the immune response and the biological aspects of immunity to disease.
- 1955–60; immuno- + biology