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.
Glomerular hypertrophy leads to hemodynamic changes, which lead to hypertension. 3. Mesangial cell hyperplasia with ECM deposition, epithelial and endothelial cell injury occur as consequences of the above. Epithelial and endothelial cell injury lead to proteinuria (nephrotic syndrome).