1. having three rays or radiating parts extending from a central point
Usage: technical; biology

Examples

• The triradiate spicules of certain sponges help provide structural support.
• Under the microscope, the triradiate pattern of the crystal was clearly visible.
• The triradiate arrangement of the coral’s skeletal elements is characteristic of this species.
• Scientists identified the fossil by its distinctive triradiate structure.
• The triradiate symmetry of the organism made it easy to classify.