potty training UK /ˈpɒtiˌtɹeɪn.ɪŋ/US /ˈpɑdiˌtɹeɪn.ɪŋ/ noun1 •The act of weaning a child off of diapers and teaching them how to use a potty. Not usually distinguished from toilet training although generally children do not use an adult-sized toilet right away.
