per·cep·ti·ble 
/pɚˈsɛptəbəl/ adjective
/pɚˈsɛptəbəl/ adjective [more perceptible; most perceptible] : able to be seen or noticed : able to be perceived
▪ The sound was barely perceptible. ▪ There was a perceptible change in the audience's mood.
▪ The sound was barely perceptible. ▪ There was a perceptible change in the audience's mood.
— per·cep·ti·bly /pɚˈsɛptəbli/ adverb
▪ The size has not changed perceptibly in three months. ▪ It is perceptibly [=noticeably] cooler this evening.
/pɚˈsɛptəbli/ adverb ▪ The size has not changed perceptibly in three months. ▪ It is perceptibly [=noticeably] cooler this evening.
