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.
The research group, headed by Dr. Lukas Sommer at the Swiss Federal Institute of Technology, has identified a heretofore unknown role for the TGF cell-to-cell signaling pathway in the pathogenesis of DiGeorge syndrome.
In cholinergic perikarya and dendrites of the Nucleus basalis magnocellularis (NBM), aging is associated with a decrease of the density of m2R at the plasma membrane and in the cytoplasm, suggesting a decrease of the total number of m2R in the somato-dendritic field.his immunotoxin induced a loss of choline acetyltransferase-positive neurons in the medial septum (-82%) and in the Nucleus basalis (-55%). BACKGROUND: It is well established that Nucleus basalis magnocellularis (NbM) lesions impair performance on tests of sustained attention.