senile dementia

illness of old people resulting in loss of memory, loss of control of bodily functions, etc 老年痴呆.

senate, senator, senatorial, send, send away for, send for, send for sb., send in, send off, send out, send round, send sb. doing sth., send sb. to school, send up, send-off, send-up, sender, senescence, senescent, senile, senility, senior, senior citizen, senior high school, seniority, senna, senor, senora, senorita, sensation, sensational, sensationalism, sensationalist, sensationalize, sensationalise, sensationally, sense, sense-organ, senseless, senselessly, senselessness,