a. [ L. senilis, from senex, gen. senis, old, an old man: cf. F. sénile. See Senior. ] Of or pertaining to old age; proceeding from, or characteristic of, old age; affected with the infirmities of old age; as, senile weakness. “Senile maturity of judgment.” Boyle. [ 1913 Webster ]
Senile gangrene (Med.), a form of gangrene occuring particularly in old people, and caused usually by insufficient blood supply due to degeneration of the walls of the smaller arteries. [ 1913 Webster ]
[やきがまわる, yakigamawaru](v5r) to become decrepit; to be in one's dotage; to become dull; to lose one's astuteness; to lose one's touch; to become senile; to lose one's edge; to go downhill[Add to Longdo]
[ぼける(呆ける;惚ける)(P);ほうける, bokeru ( boke ru ; boke ru )(P); houkeru](v1, vi) (1) to grow senile; to be childish with age; (2) to be mentally slow; to be befuddled; (3) (ほうける only) to become engrossed (in something); (P)[Add to Longdo]