ca·ret·to·che·lyd·i·dae \kə|red.(ˌ)ōkə̇ˈlidəˌdē\noun plural Usage: capitalized Etymology: New Latin, from Carettochelyd-, Carettochelys, type genus (from caretta + -o- + Greek chelys tortoise) + -idae — more at chelys : a family of pleurodiran freshwater turtles including a New Guinea turtle (Carettochelys insculpta)