toilet training /ˈtɔɪ.lət ˌtɹeɪn.ɪŋ/ noun3 •The process of training a young child to use the toilet to relieve themselves. •The process of training a domesticated or pet animal to avoid urinating or defecating indoors and to use designated places instead. •(euphemistic) The practice of enforced coprophagy or urophagia. formstoilet trainings