- An antigenically stimulated lymphocyte; a large cell with well-defined basophilic cytoplasm, a large nucleus with prominent nuclear membrane, distinct nucleoli, and clumped chromatin. SEE ALSO: lymphoblast, lymphocyte transformation. [immuno- + G. blastos, germ]
* * *im·mu·no·blast i-'myü-nə-.blast, 'im-yə-nə- n a cell formed by transformation of a T cell after antigenic stimulation and giving rise to a population of T cells with specificity against the stimulating antigen
* * *im·mu·no·blast (imґu-no-blast″) lymphoblast. immunoblastic adj
Medical dictionary. 2011.