1. one of eight children born at the same birth
2. a group or set of eight similar things

Examples

• The hospital prepared extensively for the delivery of octuplets.
• Each octuplet weighed less than three pounds at birth.
• The family received donations from around the world after the octuplets were born.
• Caring for octuplets requires tremendous resources and support.
• The musical composition featured an octuplet of notes played rapidly.
• The scientist studied an octuplet of related compounds.
• The octuplets celebrated their first birthday together.