| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024se•nile /ˈsinaɪl, ˈsɛnaɪl/USA pronunciation adj. - showing a decline of physical strength or mental functioning as a result of old age or disease.
se•nil•i•ty /sɪˈnɪlɪti/USA pronunciation n. [uncountable]See -sene-. WordReference Random House Unabridged Dictionary of American English © 2024se•nile (sē′nīl, -nil, sen′īl),USA pronunciation adj. - showing a decline or deterioration of physical strength or mental functioning, esp. short-term memory and alertness, as a result of old age or disease.
- of or belonging to old age or aged persons;
gerontological;
geriatric. - Geography, Place Names[Physical Geog.](of topographical features) having been reduced by erosion to a featureless plain that stands everywhere at base level. Cf. peneplain.
n. - a senile person.
- Latin senīlis old, equivalent. to sen(ex) old man (akin to senior) + -īlis -ile
- 1655–65
Collins Concise English Dictionary © HarperCollins Publishers:: senile /ˈsiːnaɪl/ adj - of, relating to, or characteristic of old age
- mentally or physically weak or infirm on account of old age
Etymology: 17th Century: from Latin senīlis, from senex an old mansenility /sɪˈnɪlɪtɪ/ n |