noun
A psychological term referring to a primary or exclusive sexual attraction to elderly people. Used in clinical or academic contexts.
老人性愛は、高齢者に対する性的嗜好を指す心理学用語です。
Gerontophilia is a psychological term referring to a sexual preference for elderly people.
Compound of 老人 (rōjin, 'elderly person') + 性愛 (seiai, 'sexual love'). The exact origin is uncertain; it is a modern technical term likely calqued from Western psychological terminology.