| differentiation | The distinguishing of one thing or disease from another. (18 Nov 1997) |
|---|---|
| differentiation antigen | Any large structural macromolecule that can be detected by immune reagents and that also is associated with the differentiation of a particular cell type or types. Many cells can be identified by their possession of a unique set of differentiation antigens. There should be no implication that the antigens cause differentiation. (18 Nov 1997) |
| invisible differentiation | Differentiation of the cellular chemical constituents in the embryo prior to cytodifferentiation; sometimes recognizable histochemically. Synonym: invisible differentiation. (05 Mar 2000) |
| echocardiographic differentiation | The processing of a signal so that the output depends upon the rate of change of the input; e.g., it will display changes in amplitude but will reduce the duration of the waveform. (05 Mar 2000) |