Term Name:	T cell activation
Synonyms:	T lymphocyte activation, T-cell activation, T-lymphocyte activation
Definition:	The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.
Ontology:	GO: Biological Process [GO:0042110]    QuickGO    AmiGO