Term Name:	negative regulation of T cell costimulation
Synonyms:	negative regulation of T cell co-stimulation, negative regulation of T lymphocyte costimulation, negative regulation of T-cell co-stimulation, negative regulation of T-cell costimulation, negative regulation of T-lymphocyte costimulation
Definition:	Any process that stops, prevents or reduces the frequency, rate or extent of T cell costimulation.
Ontology:	GO: Biological Process [GO:2000524]    QuickGO    AmiGO