1. relating to or based on the number five
Usage: mathematical; technical

Examples

• The quinary number system uses only the digits 0, 1, 2, 3, and 4.
• Ancient cultures sometimes used quinary counting methods based on fingers of one hand.
• The computer scientist explained the quinary representation of the data.
• Quinary classification systems divide items into five main categories.
• The quinary structure of the molecule was confirmed by the research team.