Definition is a rhetorical mode that can be used in something smaller or shorter than a full paper. You can use extended definition for several paragraphs only in a paper of much greater length. You also can add to a paper a one-paragraph definition--like a brief encyclopedia definition.
Immunodeficiency: Therapies include thymus transplantation and adoptive transfer of mature T cells (ATMTC) for individuals with complete DiGeorge syndrome and appropriate prophylaxis measures and monitoring autoimmune complications for incomplete or partial DiGeorge syndrome.
In the present study, we investigated how the Bcl-2 family relates to the ceramide-mediated apoptotic pathway induced by etoposide (VP-16), cisplatin (CDDP), or TNF-using C6 rat glioma cells and U87-MG human glioblastoma cells transfected with bax or bcl-2 gene.igure 3 Effects of Bcl-2 or Bax overexpression on ceramide formation and neutral sphingomyelinase activation in etoposide-treated C6 cells. C6/Neo (), C6/Bcl-2 (), and C6/Bax () cells were treated with 40 M etoposide for indicated periods.