senilityn. 高齡、老邁、老態龍鍾衰老、老年學術名詞老年期:地球科學、測量學、海洋地質學衰老:畜牧學老年:動物學早衰:獸醫學英文釋義mental infirmity as a consequence of old age; sometimes shown by foolish infatuationsthe state of being senile