old-old (plural old-olds)
- (social work, slang) A person aged 75 or older.
1991, Leila Simonen, Feminist Social Policy in Finland, page 95:Especially the amount and percentage of old-olds is increasing. Care for the elderly is a women's issue from two perspectives: carers are presumably women, and most of those cared-for as well.
2006, Robyn Rice, Home Care Nursing Practice: Concepts and Application, page 376:The group of 75 and over, the “old-olds,” is the fasting growing age group in our country.